The unified _header.html already renders the topbar with breadcrumb. The page_editor had a second 'page-topbar' div in the content area with the same buttons (Share, Copy link, Favorite, More). Removed the duplicate actions from the header, keeping them only in the content area where they are in the correct Alpine scope (editorState()). This fixes: - Double header visual duplication - Share/Copy/Favorite/More buttons now work (in editorState scope)