pointer: Make sure to always update the focus surface after repicking

Our current and focus surfaces might get out of sync during destruction,
which is odd, but just always do this to satisfy it.

src/wayland/meta-wayland-pointer.c

@@ -307,6 +307,7 @@ repick_for_event (MetaWaylandPointer *pointer,
     pointer->current = NULL;
 
   sync_focus_surface (pointer);
+  meta_wayland_pointer_update_cursor_surface (pointer);
 }
 
 void