Ultralytics Code Refactor https://ultralytics.com/actions (#13152)

Refactor code for speed and clarity

utils/__init__.py

@@ -34,6 +34,7 @@ def threaded(func):
     """Decorator @threaded to run a function in a separate thread, returning the thread instance."""
 
     def wrapper(*args, **kwargs):
+        """Runs the decorated function in a separate daemon thread and returns the thread instance."""
         thread = threading.Thread(target=func, args=args, kwargs=kwargs, daemon=True)
         thread.start()
         return thread