window-actor/wayland: Map the window before trying to sync geometry

We need to chain up to the parent class to make sure the
WindowActorWayland is actually mapped which is required for the
sync_geometry_internal function to succeed.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/3404>

src/compositor/meta-window-actor-wayland.c

@@ -592,9 +592,9 @@ meta_window_actor_wayland_map (ClutterActor *actor)
   ClutterActorClass *parent_class =
     CLUTTER_ACTOR_CLASS (meta_window_actor_wayland_parent_class);
 
-  do_sync_geometry (self);
-
   parent_class->map (actor);
+
+  do_sync_geometry (self);
 }
 
 static void