Merge branch '27639-emoji-panel-under-the-side-panel-in-the-merge-request' into 'master'

Layer dropdowns over right sidebar

Closes #27639

See merge request !9004

app/assets/stylesheets/pages/issuable.scss

@@ -193,7 +193,7 @@
   top: $header-height;
   bottom: 0;
   right: 0;
-  z-index: 10;
+  z-index: 8;
   transition: width .3s;
   background: $gray-light;
   padding: 10px 20px;

changelogs/unreleased/27639-emoji-panel-under-the-side-panel-in-the-merge-request.yml

+---
+title: Layer award emoji dropdown over the right sidebar
+merge_request: 9004
+author: