Bug 1832765 - start linting scss across the tree in our standard config, r=Standard8

Differential Revision: https://phabricator.services.mozilla.com/D178532

Author: gijsk

.stylelintrc.js

@@ -237,4 +237,12 @@ module.exports = {
       },
     ],
   },
+
+  overrides: [
+    {
+      files: "*.scss",
+      customSyntax: "postcss-scss",
+      extends: "stylelint-config-recommended-scss",
+    },
+  ],
 };

browser/components/pocket/content/panels/css/saved.scss

@@ -48,7 +48,6 @@
     }
 }
 .pkt_ext_containersaved .pkt_ext_loadingspinner {
-    position: relative;
     display: inline-block;
     height: 2.5em;
     inset-inline-start: 50%;
@@ -661,7 +660,7 @@
     border-radius: 4px;
     border: 1px solid #c3c3c3;
     overflow: hidden;
-    margin: 0;
+    margin: 0 0.2em;
     padding: 0 8px;
     background-color: #f7f7f7;
     color: #000;
@@ -670,7 +669,6 @@
     line-height: 1.5;
     display: block;
     width: auto;
-    margin: 0 0.2em;
     float: inline-start;
 }
 .pkt_ext_containersaved .pkt_ext_tag_input_wrapper_disabled {