Merge branch...

Merge branch '47975-project-select-dropdown-is-broken-for-group-issues-and-merge-requests' into 'master'

Resolve "Project select dropdown is broken for group issues and merge requests"

Closes #47975

See merge request gitlab-org/gitlab-ce!19906

app/assets/stylesheets/framework/secondary_navigation_elements.scss

@@ -347,7 +347,7 @@
 
 .empty-state .project-item-select-holder.btn-group {
   float: none;
-  display: inline-block;
+  justify-content: center;
 
   .btn {
     // overrides styles applied to plain `.empty-state .btn`