Merge branch '55282-dark-theme-colors' into 'master'

Remove &:not(.use-csslab) from table to fix dark diff themes

Closes #55282

See merge request gitlab-org/gitlab-ce!23941

app/assets/stylesheets/framework/files.scss

@@ -24,7 +24,7 @@
     }
   }
 
-  &:not(.use-csslab) table {
+  table {
     @extend .table;
   }