Fix styling issues with notification settings and mobile borders (#31346)

app/javascript/styles/mastodon-light/diff.scss

@@ -214,12 +214,6 @@ html {
   border-top-color: lighten($ui-base-color, 8%);
 }
 
-.column-header__collapsible-inner {
-  background: darken($ui-base-color, 4%);
-  border: 1px solid var(--background-border-color);
-  border-bottom: 0;
-}
-
 .column-settings__hashtags .column-select__option {
   color: $white;
 }

app/javascript/styles/mastodon-light/variables.scss

@@ -21,7 +21,7 @@ $valid-value-color: $success-green !default;
 
 $ui-base-color: $classic-secondary-color !default;
 $ui-base-lighter-color: #b0c0cf;
-$ui-primary-color: #9bcbed;
+$ui-primary-color: $classic-primary-color !default;
 $ui-secondary-color: $classic-base-color !default;
 $ui-highlight-color: $classic-highlight-color !default;
 

app/javascript/styles/mastodon/components.scss

@@ -2779,6 +2779,11 @@ $ui-header-logo-wordmark-width: 99px;
     &.privacy-policy {
       border-top: 1px solid var(--background-border-color);
       border-radius: 4px;
+
+      @media screen and (max-width: $no-gap-breakpoint) {
+        border-top: 0;
+        border-bottom: 0;
+      }
     }
   }
 }
@@ -4472,6 +4477,11 @@ a.status-card {
 .column-header__collapsible-inner {
   border: 1px solid var(--background-border-color);
   border-top: 0;
+
+  @media screen and (max-width: $no-gap-breakpoint) {
+    border-left: 0;
+    border-right: 0;
+  }
 }
 
 .column-header__setting-btn {
@@ -7657,6 +7667,11 @@ noscript {
       width: 100%;
     }
   }
+
+  @media screen and (max-width: $no-gap-breakpoint) {
+    border-left: 0;
+    border-right: 0;
+  }
 }
 
 .drawer__backdrop {

app/javascript/styles/mastodon/emoji_picker.scss

@@ -83,11 +83,6 @@
   max-height: 35vh;
   padding: 0 6px 6px;
   will-change: transform;
-
-  &::-webkit-scrollbar-track:hover,
-  &::-webkit-scrollbar-track:active {
-    background-color: rgba($base-overlay-background, 0.3);
-  }
 }
 
 .emoji-mart-search {

app/javascript/styles/mastodon/reset.scss

@@ -56,40 +56,3 @@ table {
 html {
   scrollbar-color: lighten($ui-base-color, 4%) rgba($base-overlay-background, 0.1);
 }
-
-::-webkit-scrollbar {
-  width: 12px;
-  height: 12px;
-}
-
-::-webkit-scrollbar-thumb {
-  background: lighten($ui-base-color, 4%);
-  border: 0px none $base-border-color;
-  border-radius: 50px;
-}
-
-::-webkit-scrollbar-thumb:hover {
-  background: lighten($ui-base-color, 6%);
-}
-
-::-webkit-scrollbar-thumb:active {
-  background: lighten($ui-base-color, 4%);
-}
-
-::-webkit-scrollbar-track {
-  border: 0px none $base-border-color;
-  border-radius: 0;
-  background: rgba($base-overlay-background, 0.1);
-}
-
-::-webkit-scrollbar-track:hover {
-  background: $ui-base-color;
-}
-
-::-webkit-scrollbar-track:active {
-  background: $ui-base-color;
-}
-
-::-webkit-scrollbar-corner {
-  background: transparent;
-}