diff --git a/quiz-app-mean/package-lock.json b/quiz-app-mean/package-lock.json
index fff4265..4583c8f 100644
--- a/quiz-app-mean/package-lock.json
+++ b/quiz-app-mean/package-lock.json
@@ -488,19 +488,28 @@
       }
     },
     "@angular/cdk": {
-      "version": "11.2.13",
-      "resolved": "https://registry.npmjs.org/@angular/cdk/-/cdk-11.2.13.tgz",
-      "integrity": "sha512-FkE4iCwoLbQxLDUOjV1I7M/6hmpyb7erAjEdWgch7nGRNxF1hqX5Bqf1lvLFKPNCbx5NRI5K7YVAdIUQUR8vug==",
+      "version": "15.2.3",
+      "resolved": "https://registry.npmjs.org/@angular/cdk/-/cdk-15.2.3.tgz",
+      "integrity": "sha512-zb9/7nVT7VdqJeQ2l10Ei2Uhm9Woc8msUUbE+VxNON3e7N2czbZeRpDdV/tyA46/9sgEvYcOXLCIB+8JkF5FwQ==",
       "requires": {
-        "parse5": "^5.0.0",
-        "tslib": "^2.0.0"
+        "parse5": "^7.1.2",
+        "tslib": "^2.3.0"
       },
       "dependencies": {
-        "parse5": {
-          "version": "5.1.1",
-          "resolved": "https://registry.npmjs.org/parse5/-/parse5-5.1.1.tgz",
-          "integrity": "sha512-ugq4DFI0Ptb+WWjAdOK16+u/nHfiIrcE+sh8kZMaM0WllQKLI9rOUq6c2b7cwPkXdzfQESqvoqK6ug7U/Yyzug==",
+        "entities": {
+          "version": "4.4.0",
+          "resolved": "https://registry.npmjs.org/entities/-/entities-4.4.0.tgz",
+          "integrity": "sha512-oYp7156SP8LkeGD0GF85ad1X9Ai79WtRsZ2gxJqtBuzH+98YUV6jkHEKlZkMbcrjJjIVJNIDP/3WL9wQkoPbWA==",
           "optional": true
+        },
+        "parse5": {
+          "version": "7.1.2",
+          "resolved": "https://registry.npmjs.org/parse5/-/parse5-7.1.2.tgz",
+          "integrity": "sha512-Czj1WaSVpaoj0wbhMzLmWD69anp2WH7FXMB9n1Sy8/ZFF9jolSQVMu1Ij5WIyGmcBmhk7EOndpO4mIpihVqAXw==",
+          "optional": true,
+          "requires": {
+            "entities": "^4.4.0"
+          }
         }
       }
     },
@@ -691,11 +700,58 @@
       }
     },
     "@angular/material": {
-      "version": "11.2.13",
-      "resolved": "https://registry.npmjs.org/@angular/material/-/material-11.2.13.tgz",
-      "integrity": "sha512-FqFdGSkOtqsmeLyTSousodDGUy2NqbtxCIKv2rwbsIRwHNKB0KpR/UQhA2gMRuGa5hxhMJ0DW0Tf9neMRuLCTg==",
-      "requires": {
-        "tslib": "^2.0.0"
+      "version": "15.2.3",
+      "resolved": "https://registry.npmjs.org/@angular/material/-/material-15.2.3.tgz",
+      "integrity": "sha512-hM3oxalZa5D0pl3aiuRNaYhP4odKmQzQvJQx1lfZ8nWIeBfzS94lygRLa5M7V8eGsYa6v+iCT5Kc+V2L6imJfA==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/auto-init": "15.0.0-canary.684e33d25.0",
+        "@material/banner": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/button": "15.0.0-canary.684e33d25.0",
+        "@material/card": "15.0.0-canary.684e33d25.0",
+        "@material/checkbox": "15.0.0-canary.684e33d25.0",
+        "@material/chips": "15.0.0-canary.684e33d25.0",
+        "@material/circular-progress": "15.0.0-canary.684e33d25.0",
+        "@material/data-table": "15.0.0-canary.684e33d25.0",
+        "@material/density": "15.0.0-canary.684e33d25.0",
+        "@material/dialog": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/drawer": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/fab": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/floating-label": "15.0.0-canary.684e33d25.0",
+        "@material/form-field": "15.0.0-canary.684e33d25.0",
+        "@material/icon-button": "15.0.0-canary.684e33d25.0",
+        "@material/image-list": "15.0.0-canary.684e33d25.0",
+        "@material/layout-grid": "15.0.0-canary.684e33d25.0",
+        "@material/line-ripple": "15.0.0-canary.684e33d25.0",
+        "@material/linear-progress": "15.0.0-canary.684e33d25.0",
+        "@material/list": "15.0.0-canary.684e33d25.0",
+        "@material/menu": "15.0.0-canary.684e33d25.0",
+        "@material/menu-surface": "15.0.0-canary.684e33d25.0",
+        "@material/notched-outline": "15.0.0-canary.684e33d25.0",
+        "@material/radio": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/segmented-button": "15.0.0-canary.684e33d25.0",
+        "@material/select": "15.0.0-canary.684e33d25.0",
+        "@material/shape": "15.0.0-canary.684e33d25.0",
+        "@material/slider": "15.0.0-canary.684e33d25.0",
+        "@material/snackbar": "15.0.0-canary.684e33d25.0",
+        "@material/switch": "15.0.0-canary.684e33d25.0",
+        "@material/tab": "15.0.0-canary.684e33d25.0",
+        "@material/tab-bar": "15.0.0-canary.684e33d25.0",
+        "@material/tab-indicator": "15.0.0-canary.684e33d25.0",
+        "@material/tab-scroller": "15.0.0-canary.684e33d25.0",
+        "@material/textfield": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/tooltip": "15.0.0-canary.684e33d25.0",
+        "@material/top-app-bar": "15.0.0-canary.684e33d25.0",
+        "@material/touch-target": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.3.0"
       }
     },
     "@angular/platform-browser": {
@@ -3547,6 +3603,757 @@
         "schema-utils": "^2.7.0"
       }
     },
+    "@material/animation": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/animation/-/animation-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-5osi1z4JQIXcklPALbH/zTfOm2pDzHt9Fxm7ZyURy250xIZj6QjULRzPTnzOhC2ropfix9ra2Cfggbf0dcRbEQ==",
+      "requires": {
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/auto-init": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/auto-init/-/auto-init-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-OigQTmrVzkcGvxNjOaIe5oItTFPgrO9xLewvharDI6m6yvO1z7OBnkcW+sFN6ggLNYNxd0O1u9v64vMsmeDABQ==",
+      "requires": {
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/banner": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/banner/-/banner-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-PqtGp3KWzdu58rWv/DIvSfe38m5YKOBbAAbBinSvgadBb/da+IE1t5F7YPNKE1T5lJsQBGVUYx6QBIeXm+aI/A==",
+      "requires": {
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/button": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/shape": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/tokens": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/base": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/base/-/base-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-oOaqb/SfjWwTKsdJUZmeh/Qrs41nIJI0N+zELsxnvbGjSIN1ZMAKYZFPMahqvC68OJ6+5CvJM8PoTNs5l+B8IQ==",
+      "requires": {
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/button": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/button/-/button-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-Nkekk4edeX+ObVOa7UlwavaHdmckPV5wU4SAJf3iA3R61cmz+KsgAgpzfcwv5WfNhIlc2nLu8QYEecpHdo9d/w==",
+      "requires": {
+        "@material/density": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/focus-ring": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/shape": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/tokens": "15.0.0-canary.684e33d25.0",
+        "@material/touch-target": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/card": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/card/-/card-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-xhyB7XX5KkEiCEqwSPkl58ZGYL6xFdnY62zimyBXJRG/Eaa0Swj3kW20hVCpt4f7c9Zmp8Se27rg8vnKmhvO3g==",
+      "requires": {
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/shape": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/tokens": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/checkbox": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/checkbox/-/checkbox-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-NFpM3TS924PmVsk2KQLNU95OYCf8ZwYgzeqfnAexU0bEfjUJXINBun2Go0AaeOUMjuvWUe+byjrXgv8SFYbMUA==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/density": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/focus-ring": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/touch-target": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/chips": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/chips/-/chips-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-z4ajQ4NnsAQ/Si9tZ4xmxzjj2Qb+vW++4QjCjjjwAGIZbCe0xglAnMh2t66XLJUxt7RoKZuZVEO7ZqcFZpvJFQ==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/checkbox": "15.0.0-canary.684e33d25.0",
+        "@material/density": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/focus-ring": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/shape": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/tokens": "15.0.0-canary.684e33d25.0",
+        "@material/touch-target": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "safevalues": "^0.3.4",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/circular-progress": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/circular-progress/-/circular-progress-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-G6qD0nGNtEUwWnAMJuA9INYFpZoKtx7KFjBaPF4Ol2YLHtmShALNAYyn54TMAK8AZ2IpW08PXjGS7Ye88vrdEQ==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/progress-indicator": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/data-table": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/data-table/-/data-table-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-+wDw1DDDFfAsKAMzs84f/5GCjux39zjNfW8tL4wFbkWNwewmQrG9zaQMJhBpVOtLCrM8Gj6SOgOANqgqoCjvGg==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/checkbox": "15.0.0-canary.684e33d25.0",
+        "@material/density": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/icon-button": "15.0.0-canary.684e33d25.0",
+        "@material/linear-progress": "15.0.0-canary.684e33d25.0",
+        "@material/list": "15.0.0-canary.684e33d25.0",
+        "@material/menu": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/select": "15.0.0-canary.684e33d25.0",
+        "@material/shape": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/tokens": "15.0.0-canary.684e33d25.0",
+        "@material/touch-target": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/density": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/density/-/density-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-661yEVRMGrlq6S6WuSbPRO+ZwpdUOg2glCc7y96doM6itSLOa3UEAldjOLfsYZVB74GnKCiuDp//QmfoRyYTfA==",
+      "requires": {
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/dialog": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/dialog/-/dialog-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-szn0dHnfeQTSOC6SSRSGAzX6Tnx+4NnSMUwNkXm+3bwjds8ZVK26+DXwLrP5f3ID5F1K5sFsRf2INo5/TNTHyQ==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/button": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/icon-button": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/shape": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/tokens": "15.0.0-canary.684e33d25.0",
+        "@material/touch-target": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/dom": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/dom/-/dom-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-7pEJLYov+tGgfuD8mZxoVU6rWtPI8ppjTAhz+F27Hz9FG0JETMWTKpDPBXLnKvX7vhIxL83GvZ9geNHCe8Hfog==",
+      "requires": {
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/drawer": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/drawer/-/drawer-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-/KMckLf1PYU/H3PXnS4e0aFl03qG3JlSv4LGgX6juJufcONqGTl/m63EMO/L/eUy6H1CRrXmVDjik/jzHLyDhg==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/list": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/shape": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/elevation": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/elevation/-/elevation-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-WDF8SsRtq3rXUbVVbd9K4DUijIPH0bUFSOreVYxudpuxAfTlDS5+aeS1EK9UIBFYLuba4u5wVT2tDv6e1RTfrQ==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/fab": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/fab/-/fab-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-KCu87rWOKEAe9vZcAm6K8XazYSWPNjMG+OhrbPjHW6bCO7as1YCgtmkBkhff7csY/rFmcVpIy884xtUfLmSudQ==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/focus-ring": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/shape": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/tokens": "15.0.0-canary.684e33d25.0",
+        "@material/touch-target": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/feature-targeting": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/feature-targeting/-/feature-targeting-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-HyH1erNTSjS63sigNSUMaCd0nJhTNdDFeC+myrxwtDaQm+uYJ8troCNtQM3g6mx0XATNtX5aTOoPmrM6yVVi1A==",
+      "requires": {
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/floating-label": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/floating-label/-/floating-label-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-f7TPp6bKpGvV3sYYiZHSGlrixXKkXXITW3Esp7KB9jRq42c0H82novmdwvY0eTef4ootmA2JEysr78KQfHBUPg==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/focus-ring": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/focus-ring/-/focus-ring-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-ikw2RVUfgzXChpWIzPH1VzRvTjYb5ZKj4H+CZf7jqPUXMstFOZg90Bp7ARLZHqYiyNMuUq3zUTHozS6iHorSqg==",
+      "requires": {
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0"
+      }
+    },
+    "@material/form-field": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/form-field/-/form-field-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-vpF9N/uq5no/7+8GAbEH0868FhOuBgxAWRr1Sfb+jthKfBr8OS/wPU/AHzZHdHdAm7PQynbeOXfDsX2dI//PDA==",
+      "requires": {
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/icon-button": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/icon-button/-/icon-button-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-wMI+XGzmIN/o2ePBKg2hLyx7H4pXCRAyyIKMQS1FMp1UKa2tYmiHVX/V8skhKwCqxg3i6Ls/LxMjfPxTR18WvQ==",
+      "requires": {
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/density": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/focus-ring": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/touch-target": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/image-list": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/image-list/-/image-list-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-Ol+uaHYBe5R/cgzlfh5ONnMVX0wO6fV74JMUcQCQlxP6lXau/edARo4tkRc7A7UJUkU3VRv0EpEjLoCRNUPGaA==",
+      "requires": {
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/shape": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/layout-grid": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/layout-grid/-/layout-grid-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-ALXE1mqFNb/RB2lVRQ3/r1Aufw2mFZnOjRE+boYDVepmAG/xWyPCyaGoavELJF5l4GAb0tXi8wA/8HeGbLOpuA==",
+      "requires": {
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/line-ripple": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/line-ripple/-/line-ripple-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-7hRx8C/e9i0P6pgQpNOMfTwSS2r1fwEvBL72QDVGLtLuoKKwsjjgP6Z0Jat/GeHJe87u9LQvGBoD4upt+of/HA==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/linear-progress": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/linear-progress/-/linear-progress-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-iJclt7mKmcMk6pqD7ocXKfCWZhqBoODp7N593jYlxVpTJuEz2wiVAjZUDn/YGj/Uz3CRH+2YFfOiLr9pwWjhDg==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/progress-indicator": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/list": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/list/-/list-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-rQ+FCSdzmwTcT00IYE0uRV3CS4oGSccKFl9hkcF+aHFW61L7ORh/SCGUDPrEfQFrFkMn5f8qroVJjpUAMXBz4g==",
+      "requires": {
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/density": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/shape": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/tokens": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/menu": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/menu/-/menu-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-r7wzDLSGSI9629/mfpvsMzkVxpmV75kcD3IrW0Pcu6/Bv/1xi0EvjcUXzNJJoQlwN4Zj35Ymz/PCjZkIDIz68Q==",
+      "requires": {
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/list": "15.0.0-canary.684e33d25.0",
+        "@material/menu-surface": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/shape": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/tokens": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/menu-surface": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/menu-surface/-/menu-surface-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-RVO5GAYcfWPaKwxsF/NhUAmrYXQCQBKvRQW0TIlbmAJz6lcFeTs6YZqF3u1C7qrL3ZQGz+sur/7ywj6QU0oMow==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/shape": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/notched-outline": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/notched-outline/-/notched-outline-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-9YHcBkvJLPVYzkHcWoTpBZAFrEd+j1hjhGxLhh0LuNrZe8VroUkZD1TTnUAPHRG3os6EqEWWaKb0RN+aPIF2yQ==",
+      "requires": {
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/floating-label": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/shape": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/progress-indicator": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/progress-indicator/-/progress-indicator-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-c0icji4faeNWUoqGENGC7Hav0Puxh0RwXIDVizffaUxKIGbajpIp5+4Zop73fK/xFLGMB/npg7TbP+aCGjQ3fw==",
+      "requires": {
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/radio": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/radio/-/radio-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-U3Eh8sNUA8trDla1Bq8Bo02foxYvtoewaKeF8A8tAju81XZ4jRiftfOsOWZDZEHCVbbCB2QwvutvFlnay5n+Aw==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/density": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/focus-ring": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/touch-target": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/ripple": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/ripple/-/ripple-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-RyePu7SjIm/OuyyEieZ/gxiPYkNZOZHeid72WRcN9ofdlljj2pifcdPvcfZA+v/DMS33xo5GjG2L/Qj6ClWrKw==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/rtl": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/rtl/-/rtl-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-NqdJl8Ayupp1Th+vCNCpVQHbUFOuF7TCte9LD1norTIBUF/QizIxWby2W5uUEiPbnh5j9PmE1CJtfLwKun3pcw==",
+      "requires": {
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/segmented-button": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/segmented-button/-/segmented-button-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-bEGgg8vgXNLyukyV8HRjFMuQ6t6nm5LQ4Pgm22um61Yc8qyi0BOqV41OR4SVdUrUqZxh1aVD+p+4NN03+LfQXw==",
+      "requires": {
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/touch-target": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/select": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/select/-/select-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-kf178/2TeEinTv0mgmSBcmmExQ2h7a7dtR1E3WuqQgisJ/R6+zVLMkC2CnfIyzxYX2vkuUTG0ue3Reh/6XiqSg==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/density": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/floating-label": "15.0.0-canary.684e33d25.0",
+        "@material/line-ripple": "15.0.0-canary.684e33d25.0",
+        "@material/list": "15.0.0-canary.684e33d25.0",
+        "@material/menu": "15.0.0-canary.684e33d25.0",
+        "@material/menu-surface": "15.0.0-canary.684e33d25.0",
+        "@material/notched-outline": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/shape": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/tokens": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/shape": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/shape/-/shape-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-aEelpaTFmpnCji3TUGP9bVCS/bRVjUmLTHBPZtuu1gOrUVVtJ6kYOg73dZNJF+XOoNL2yOX/LRcKwsop29tptA==",
+      "requires": {
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/slider": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/slider/-/slider-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-WVyK+2pSNSZmj07M2K/a3TADoQ9FBCndfNC/vE7/wGIg4dddJJK5KvQ+yruf9R2cSzTL/S1sZ5WpyyeM8E9HTw==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/tokens": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/snackbar": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/snackbar/-/snackbar-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-itO+DCkOannZzR1/cCHcqAm7ifhuFvXmDItNoA8qLEcAyJDJJRkhpwj3XQ01yuo9gBFcSctp7Txt7e+Hncm/Jg==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/button": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/icon-button": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/shape": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/tokens": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/switch": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/switch/-/switch-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-Jxi0gl92yvvZZsAPxvVHzXx2ga+T/djMow98jvEczmpUorWnAhgiCr9CsSSRoosahWyRB8NLZOxUQrACxvffjw==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/density": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/focus-ring": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/shape": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/tokens": "15.0.0-canary.684e33d25.0",
+        "safevalues": "^0.3.4",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/tab": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/tab/-/tab-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-WQL3wj9syHNcfe8KbgGGUcA34M8C/xZ+n0Fkkh8Kk6puVwaU+xqUNihsxPY6YzKpmh4PZ4oJaBdiN8zvFT1zqQ==",
+      "requires": {
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/focus-ring": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/tab-indicator": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/tokens": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/tab-bar": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/tab-bar/-/tab-bar-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-SW/cMaDsIGGkM1ag3A7GJRlmr8eXmObWsvitQJzh6Azr5zzZtSI+GQygkMesAEE1gbpqOVN8d40rh3H7VVIAcA==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/density": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/tab": "15.0.0-canary.684e33d25.0",
+        "@material/tab-indicator": "15.0.0-canary.684e33d25.0",
+        "@material/tab-scroller": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/tokens": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/tab-indicator": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/tab-indicator/-/tab-indicator-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-kKICqSPqOlaf0lzaFFCmuOqPXJC+cK48Qmsc+m5o6fJhkmuZRCYpIwB2JeP+uZSOq/bTH+SrPtCtnVlgWg6ksA==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/tab-scroller": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/tab-scroller/-/tab-scroller-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-H6EU/TSiK/M2DyyORX5GEtXD9rKYxTMHC2VxsNWARPMFJGzgeW2ugYkFv+rKI1/c0bs0CJ4e+qFnOlBsQXZvyQ==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/tab": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/textfield": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/textfield/-/textfield-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-OvgpDXjvpyJTtAWskO69IDybFvDNzr9w2PN/Fk7yFm+uNVupaWz1Ew8lZ4gGslaTNSVmh2XcsvmzxcLINSiiNg==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/density": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/floating-label": "15.0.0-canary.684e33d25.0",
+        "@material/line-ripple": "15.0.0-canary.684e33d25.0",
+        "@material/notched-outline": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/shape": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/tokens": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/theme": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/theme/-/theme-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-AZxaXXAvRKzAi20RlMxzt2U5UmkCWyv7DMWEBXsxtG5Tk54mi1HsbVUp3fxDPTlmL7Pq8p1/DESg/o7TgRCVlw==",
+      "requires": {
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/tokens": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/tokens/-/tokens-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-wVwbQOTCXDPKYPdHQHLr026y36MMFelID1CmbfRk6mSol4O8yE9U0fXcShfRDW8Qo5E3X31w9c2A6T3neJY7wQ==",
+      "requires": {
+        "@material/elevation": "15.0.0-canary.684e33d25.0"
+      }
+    },
+    "@material/tooltip": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/tooltip/-/tooltip-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-dtm26QjxyQdinc8btgz6yys07b7bUW4FZgNF2EBPeGrICrPg7jf+JEvDziz5g8VMaTBQLOQRSCGy0MKuRlOjLw==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/button": "15.0.0-canary.684e33d25.0",
+        "@material/dom": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/shape": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/tokens": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "safevalues": "^0.3.4",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/top-app-bar": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/top-app-bar/-/top-app-bar-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-1M+oupUxflfW7u81P1XlxoLZB8bLzwtpKofIfDNRbEsiKhlLTERJR3Yak3BGE9xakNMysAaBHlkb5MrN5bNPFw==",
+      "requires": {
+        "@material/animation": "15.0.0-canary.684e33d25.0",
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/elevation": "15.0.0-canary.684e33d25.0",
+        "@material/ripple": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/shape": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "@material/typography": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/touch-target": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/touch-target/-/touch-target-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-zdE69Slg8+T7sTn1OwqZ6H7WBYac9mxJ/JlJqfTqthzIjZRcCxBSYymQJcDHjsrPnUojOtr9U4Tpm5YZ96TEkQ==",
+      "requires": {
+        "@material/base": "15.0.0-canary.684e33d25.0",
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/rtl": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
+    "@material/typography": {
+      "version": "15.0.0-canary.684e33d25.0",
+      "resolved": "https://registry.npmjs.org/@material/typography/-/typography-15.0.0-canary.684e33d25.0.tgz",
+      "integrity": "sha512-aVnvgMwcfNa/K4wujzpKDIxjGl2hbkEL+m+OKDSQqWYjKcP9QrbzCXJruJBqxrBoPRHLbqo47k5f9uT8raSgjw==",
+      "requires": {
+        "@material/feature-targeting": "15.0.0-canary.684e33d25.0",
+        "@material/theme": "15.0.0-canary.684e33d25.0",
+        "tslib": "^2.1.0"
+      }
+    },
     "@ngtools/webpack": {
       "version": "12.2.7",
       "resolved": "https://registry.npmjs.org/@ngtools/webpack/-/webpack-12.2.7.tgz",
@@ -12506,6 +13313,11 @@
       "integrity": "sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==",
       "dev": true
     },
+    "safevalues": {
+      "version": "0.3.4",
+      "resolved": "https://registry.npmjs.org/safevalues/-/safevalues-0.3.4.tgz",
+      "integrity": "sha512-LRneZZRXNgjzwG4bDQdOTSbze3fHm1EAKN/8bePxnlEZiBmkYEDggaHbuvHI9/hoqHbGfsEA7tWS9GhYHZBBsw=="
+    },
     "sass": {
       "version": "1.36.0",
       "resolved": "https://registry.npmjs.org/sass/-/sass-1.36.0.tgz",
diff --git a/quiz-app-mean/package.json b/quiz-app-mean/package.json
index 3baf7b4..4de473e 100644
--- a/quiz-app-mean/package.json
+++ b/quiz-app-mean/package.json
@@ -12,12 +12,12 @@
   "private": true,
   "dependencies": {
     "@angular/animations": "11.2.11",
-    "@angular/cdk": "11.2.13",
+    "@angular/cdk": "15.2.3",
     "@angular/common": "11.2.11",
     "@angular/compiler": "11.2.11",
     "@angular/core": "11.2.11",
     "@angular/forms": "11.2.11",
-    "@angular/material": "11.2.13",
+    "@angular/material": "15.2.3",
     "@angular/platform-browser": "11.2.11",
     "@angular/platform-browser-dynamic": "11.2.11",
     "@angular/router": "11.2.11",