Unbreak Debian 11 and partially Ubuntu 22.04 (Wayland+GDM+Gnome) (#81)

* Unbreaking Debian 11 and partially Ubuntu 22.04

* pre-cleanup

* pre-cleanup2

* Update im-launch

* Update gnome-extension-ding

* polishing

* not yet

* Update ubuntu.flags

Allow GDM to boot. `No new privs` fix.

* Update debian.flags

Allow GDM to boot. `No new privs` fix.

* Update CONTRIBUTING.md

* fixes

* reverting w

* move setpriv to main.flags

apparmor.d/profiles-s-z/udisksd

@@ -64,6 +64,11 @@ profile udisksd @{exec_path} flags=(attach_disconnected) {
        interface=org.freedesktop.login[0-9].Manager
        member=Inhibit,
 
+  dbus receive bus=system path=/org/freedesktop/login[0-9]*
+       interface=org.freedesktop.login[0-9]*.Manager
+       member={PrepareForSleep,PrepareForShutdown}
+       peer=(name=:*, label=systemd-logind),
+
   dbus send bus=system path=/org/freedesktop/PolicyKit[0-9]/Authority
        interface=org.freedesktop.DBus.Properties
        member=GetAll,