🐛 Fixed infinite scroll of posts/pages screens not working in Safari

closes TryGhost/Ghost#10521
- bumped `ember-in-viewport` and `ember-infinity` which fixed the Safari bug
- forced resolution of `ember-in-viewport` to 3.2.2 to avoid conflicts across project sub-dependencies
- switched to fork of `ember-light-table` which contains a compatibility fix with `ember-in-viewport@3.2.2` (PR'd here adopted-ember-addons/ember-light-table#674)

package.json

@@ -73,9 +73,9 @@
     "ember-exam": "2.0.3",
     "ember-export-application-global": "2.0.0",
     "ember-fetch": "6.5.0",
-    "ember-in-viewport": "~3.0.3",
-    "ember-infinity": "1.2.6",
-    "ember-light-table": "1.13.2",
+    "ember-in-viewport": "3.2.2",
+    "ember-infinity": "1.3.4",
+    "ember-light-table": "https://github.com/kevinansfield/ember-light-table#bump-ember-in-viewport",
     "ember-load": "0.0.17",
     "ember-load-initializers": "2.0.0",
     "ember-mocha": "0.14.0",
@@ -130,5 +130,8 @@
       "lib/asset-delivery",
       "lib/koenig-editor"
     ]
+  },
+  "resolutions": {
+    "ember-in-viewport": "3.2.2"
   }
 }

yarn.lock

@@ -4906,7 +4906,7 @@ ember-hash-helper-polyfill@^0.2.0:
     ember-cli-babel "^6.8.2"
     ember-cli-version-checker "^2.1.0"
 
-ember-in-viewport@^3.1.5:
+ember-in-viewport@3.2.2, ember-in-viewport@^3.2.2, ember-in-viewport@~3.0.0, ember-in-viewport@~3.2.2:
   version "3.2.2"
   resolved "https://registry.yarnpkg.com/ember-in-viewport/-/ember-in-viewport-3.2.2.tgz#81110e04076cf693f29d19e58daf5a3a5b8da60e"
   integrity sha512-EGQ7hwSlDsjaV80Adxc9zdTpXGCtZgO05ZIlEHE4C2oUNO+aS3jVgYRgqR8AzQwx3bmC8xAB4qpcLrvKVQJKWg==
@@ -4916,20 +4916,13 @@ ember-in-viewport@^3.1.5:
     intersection-observer-admin "0.0.5"
     raf-pool "0.0.4"
 
-ember-in-viewport@~3.0.0, ember-in-viewport@~3.0.3:
-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/ember-in-viewport/-/ember-in-viewport-3.0.3.tgz#49c60b52525795246761742ed4495ad6cd9bf70d"
-  integrity sha512-Iw8qquApABdrP9xA8hJFaYAxz/iOGLJ0Acq4QptemEnpsHcQqAET/SKL/A1fbtDGQAVtB5+bULaJcsrzRMCteg==
-  dependencies:
-    ember-cli-babel "^6.6.0"
-
-ember-infinity@1.2.6:
-  version "1.2.6"
-  resolved "https://registry.yarnpkg.com/ember-infinity/-/ember-infinity-1.2.6.tgz#b935f13e386f5bf2ebc973b96b5ca45addadf546"
-  integrity sha512-1Ju5un0IIlawAm8p8RsSxKnYBgPQ6ygtftNYi3s4IglR+pSgoWiAoA2iwDSa85cZMDTHr1XiOBcM1xedu75mjg==
+ember-infinity@1.3.4:
+  version "1.3.4"
+  resolved "https://registry.yarnpkg.com/ember-infinity/-/ember-infinity-1.3.4.tgz#cb2cc08a044436023da394d408373d5cda576196"
+  integrity sha512-7kbeapUUoWzMkaHqqZykKcQgSkf1IxBQiNURVL7IRLuOaN1ZQWTaoqeMt12tvdFh9X+KvM0KouGUHfEFjfzeaA==
   dependencies:
     ember-cli-babel "~7.1.2"
-    ember-in-viewport "^3.1.5"
+    ember-in-viewport "~3.2.2"
 
 "ember-inflector@^2.0.0 || ^3.0.0", ember-inflector@^3.0.0:
   version "3.0.0"
@@ -4952,18 +4945,17 @@ ember-lifeline@^3.0.1:
   dependencies:
     ember-cli-babel "^7.1.3"
 
-ember-light-table@1.13.2:
+"ember-light-table@https://github.com/kevinansfield/ember-light-table#bump-ember-in-viewport":
   version "1.13.2"
-  resolved "https://registry.yarnpkg.com/ember-light-table/-/ember-light-table-1.13.2.tgz#be9ec8ce4c3b41d43bdf8e571e18ae0cfed6c9b7"
-  integrity sha512-pmilGVQa8il2o+BbrM33jgf16mWSnbjl+hReCDCcapbLlB5tgA6WfbbUDK8myunw1GsPhSREoo3SzwoXQDazFg==
+  resolved "https://github.com/kevinansfield/ember-light-table#a757399504755ad8dde5cb4196576201881b93d4"
   dependencies:
     "@html-next/vertical-collection" "^1.0.0-beta.12"
     ember-cli-babel "^6.11.0"
     ember-cli-htmlbars "^2.0.3"
     ember-cli-string-helpers "^1.8.1"
     ember-composable-helpers "^2.1.0"
     ember-get-config "^0.2.4"
-    ember-in-viewport "~3.0.3"
+    ember-in-viewport "^3.2.2"
     ember-scrollable "^0.5.0"
     ember-truth-helpers "^2.0.0"
     ember-wormhole "^0.5.4"