dee6cf3f6b
To prevent sporadic shutdown failures: ``` ** Message: 17:08:37.707: Shutting down GNOME Shell (gnome-shell:91892): Gjs-CRITICAL **: 17:08:37.728: Object .Gjs_ui_panel_Panel (0x5b53524fb030), has been already disposed — impossible to access it. This might be caused by the object having been destroyed from C code using something such as destroy(), dispose(), or remove() vfuncs. ``` Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/3601>