
Now that the DnD code is shared between AppDisplay and FolderView, we hit an unexpected problem: FolderView is handling drag events even when the folder dialog is hidden. As a side effect, this spams the journal with warnings. Only handle drag events when mapped. On unmap, disable the view's drag monitor, and disconnect from all drag events. https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1284