Refactor metrics handling and remove scheduler

- Removed the metrics scheduler functionality from the bot, transitioning to real-time metrics updates via middleware.
- Enhanced logging for metrics operations across various handlers to improve monitoring and debugging capabilities.
- Integrated metrics tracking for user activities and database errors, providing better insights into bot performance.
- Cleaned up code by removing obsolete comments and unused imports, improving overall readability and maintainability.

helper_bot/handlers/group/group_handlers.py

@@ -46,6 +46,8 @@ class GroupHandlers:
         )
     
     @error_handler
+    @track_errors("group_handlers", "handle_message")
+    @track_time("handle_message", "group_handlers")
     async def handle_message(self, message: types.Message, state: FSMContext, **kwargs):
         """Handle admin reply to user through group chat"""