Tray exit lag fix

tg_ws_proxy.py

@@ -790,7 +790,14 @@ async def _run(port: int, dc_opt: Dict[int, Optional[str]],
         async def wait_stop():
             await stop_event.wait()
             server.close()
-            await server.wait_closed()
+            me = asyncio.current_task()
+            for task in list(asyncio.all_tasks()):
+                if task is not me:
+                    task.cancel()
+            try:
+                await server.wait_closed()
+            except asyncio.CancelledError:
+                pass
         asyncio.create_task(wait_stop())
 
     async with server: