Merge branch '294156-fix-merge-request-changes-comment-fullscreen-mode' into 'master'

Fix full screen mode for comments in merge request changes view

See merge request gitlab-org/gitlab!53009

app/assets/stylesheets/page_bundles/merge_requests.scss

@@ -7,7 +7,6 @@
 .diff-files-holder {
   flex: 1;
   min-width: 0;
-  z-index: 201;
 }
 
 .diff-tree-list {

changelogs/unreleased/294156-fix-merge-request-changes-comment-fullscreen-mode.yml

+---
+title: Fix fullscreen mode not working for comments in merge request changes view
+merge_request: 53009
+author: Simon Stieger @sim0
+type: fixed