Merge branch 'master' into 'master'

Fix active menu background and menu hover background in darkmode

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/141312



Merged-by: Paul Gascou-Vaillancourt <pgascouvaillancourt@gitlab.com>
Approved-by: Sascha Eggenberger <seggenberger@gitlab.com>
Approved-by: Himanshu Kapoor <info@fleon.org>
Approved-by: Paul Gascou-Vaillancourt <pgascouvaillancourt@gitlab.com>
Reviewed-by: Sascha Eggenberger <seggenberger@gitlab.com>
Co-authored-by: Iven Schlenther <iven.s@lvckyworld.net>
Co-authored-by: Sascha Eggenberger <seggenberger@gitlab.com>

app/assets/stylesheets/page_bundles/wiki.scss

@@ -101,7 +101,7 @@
   }
   .active > .wiki-list {
-    background-color: $gray-50;
+    background-color: var(--gray-50, $gray-50);
   }
   .wiki-list {
@@ -110,7 +110,7 @@
     @include gl-rounded-base;
     &:hover {
-      background: $gray-50;
+      background: var(--gray-50, $gray-50);
       .wiki-list-create-child-button {
         display: block;