message: Meta: Re enable `clean-conversation-sidebar`
  It is disabled via hotfix
diff: @@ -124,7 +124,7 @@ import './features/edit-files-faster';
  import './features/update-pr-from-base-branch';
  import './features/hide-disabled-milestone-sorter';
  import './features/tag-changelog-link';
  -// #4258 // import './features/clean-conversation-sidebar';
  +import './features/clean-conversation-sidebar';
  import './features/sticky-sidebar';
  import './features/release-download-count';
  import './features/open-issue-to-latest-comment';
  