Move global menu (appmenu) back to menubar
AppMenu was really used by Gnome Shell only. Since its retirement with Gnome Shell 3.32 there is no need to keep the 'prefers_app_menu' switch.
AppMenu was really used by Gnome Shell only. Since its retirement with Gnome Shell 3.32 there is no need to keep the 'prefers_app_menu' switch.