Merge pull request #15745 from overleaf/td-ide-page-layout-menu-stacking

React IDE page: fix the stacking of the layout menu relative to the main content

GitOrigin-RevId: 14a213eee1b4f6d909b365ff54da417ad10c5f93

services/web/frontend/stylesheets/app/editor/ide-react.less

@@ -39,6 +39,7 @@
   flex-grow: 1;
   background-color: @pdf-bg;
   overflow-y: hidden;
+  z-index: 0;
 }
 
 .horizontal-resize-handle {