Async guard

This should prevent race condition and crashes when when changing modes (locking, unlocking, creating new profile)

clive/__private/core/world.py

@@ -270,9 +270,6 @@ class TUIWorld(World, CliveDOMNode):
     async def _on_going_into_locked_mode(self, source: LockSource) -> None:
         await self.app._switch_mode_into_locked(source)
 
-    async def _on_going_into_unlocked_mode(self) -> None:
-        self.app.trigger_app_state_watchers()
-
     def _setup_commands(self) -> TUICommands:
         return TUICommands(self)