
There's no need for a `inhibitEventBlocker` interface. Since we connect to "open-state-changed" of our folders in the AllView anyway, we can just make the event blocker visible while a folder is opened, and hide the event blocker during DnD. This allows keeping the eventBlocker reactive at all times and fixes an issue where DnD to create a new folder is impossible if no folders are present because the eventBlocker would not get inhibited. Fixes https://gitlab.gnome.org/GNOME/gnome-shell/issues/1652