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/groups/gnome/gsd-keyboard

@@ -11,6 +11,7 @@ profile gsd-keyboard @{exec_path} flags=(attach_disconnected) {
   include <abstractions/base>
   include <abstractions/dbus-session-strict>
   include <abstractions/dbus-strict>
+  include <abstractions/dbus-accessibility-strict>
   include <abstractions/dconf-write>
   include <abstractions/fontconfig-cache-read>
   include <abstractions/fonts>
@@ -18,10 +19,78 @@ profile gsd-keyboard @{exec_path} flags=(attach_disconnected) {
 
   signal (receive) set=(term, hup) peer=gdm*,
 
+  dbus send bus=session path=/org/freedesktop/DBus
+       interface=org.freedesktop.DBus
+       member={RequestName,ReleaseName}
+       peer=(name=org.freedesktop.DBus, label=dbus-daemon),
+
   dbus send bus=system path=/org/freedesktop/locale[0-9]
        interface=org.freedesktop.DBus.Properties
        member=GetAll,
 
+  dbus send    bus=session path=/org/gtk/Settings
+       interface=org.freedesktop.DBus.Properties
+       member=GetAll
+       peer=(name=:*, label=gsd-xsettings),
+
+  dbus (send, receive) bus=session path=/org/gnome/SessionManager{,/Client[0-9]*}
+       interface=org.freedesktop.DBus.Properties
+       member={GetAll,PropertiesChanged}
+       peer=(name=:*, label=gnome-session-binary),
+
+  dbus send    bus=session path=/org/gnome/SessionManager/Client[0-9]*
+       interface=org.gnome.SessionManager.ClientPrivate
+       member=EndSessionResponse
+       peer=(name=:*, label=gnome-session-binary),
+
+  dbus receive bus=session path=/org/gnome/SessionManager/Client[0-9]*
+       interface=org.gnome.SessionManager.ClientPrivate
+       member={CancelEndSession,QueryEndSession,EndSession,Stop}
+       peer=(name=:*, label=gnome-session-binary),
+
+  dbus send    bus=session path=/org/gnome/SessionManager
+       interface=org.gnome.SessionManager
+       member=RegisterClient
+       peer=(name=:*, label=gnome-session-binary),
+
+  dbus receive bus=session path=/org/gnome/SessionManager
+       interface=org.gnome.SessionManager
+       member={ClientAdded,SessionRunning,ClientRemoved,InhibitorRemoved,InhibitorAdded}
+       peer=(name=:*, label=gnome-session-binary),
+
+  dbus send bus=session path=/org/a11y/bus
+       interface=org.a11y.Bus
+       member=GetAddress
+       peer=(name=org.a11y.Bus), # all peer's labels
+
+  dbus send    bus=accessibility path=/org/a11y/atspi/registry
+       interface=org.a11y.atspi.Registry
+       member=GetRegisteredEvents
+       peer=(name=org.a11y.atspi.Registry), # all peer's labels
+
+  dbus send    bus=accessibility path=/org/a11y/atspi/registry/deviceeventcontroller
+       interface=org.a11y.atspi.DeviceEventController
+       member={GetKeystrokeListeners,GetDeviceEventListeners}
+       peer=(name=org.a11y.atspi.Registry), # all peer's labels
+
+  dbus send bus=accessibility path=/org/a11y/atspi/accessible/root
+       interface=org.a11y.atspi.Socket
+       member=Embed
+       peer=(name=org.a11y.atspi.Registry), # all peer's labels
+
+  dbus send bus=session path=/org/gtk/vfs/mounttracker
+       interface=org.gtk.vfs.MountTracker
+       member=ListMountableInfo
+       peer=(name=:*, label=gvfsd),
+
+  dbus receive bus=session path=/
+       interface=org.freedesktop.DBus.Introspectable
+       member=Introspect
+       peer=(name=:*, label=gnome-shell),
+
+  dbus bind bus=session
+       name=org.gnome.SettingsDaemon.Keyboard,
+
   @{exec_path} mr,
 
   /usr/share/dconf/profile/gdm r,
@@ -31,6 +100,7 @@ profile gsd-keyboard @{exec_path} flags=(attach_disconnected) {
   /usr/share/X11/xkb/** r,
 
   /var/lib/gdm{3,}/.config/dconf/user r,
+  /var/lib/gdm{3,}/greeter-dconf-defaults r,
   /var/lib/gdm{3,}/.config/.gsd-keyboard.settings-ported* rw,
 
   owner @{user_config_dirs}/.gsd-keyboard.settings-ported* rw,