Update app.py

app.py

@@ -313,6 +313,8 @@ async def exe(websocket,connected,key):
             elif event["command"]["type"]=="rename":
                 
                 await rename_item(websocket, key,event["project_name"], event["path"], event["name"], connected)
+            elif event["command"]["type"]=="join":
+                await join(websocket, event["join"])
             elif event["command"]["type"]=="project":
                 base_path = os.path.join(os.getcwd(), 'projects',key, event["project_name"])
                 data=json.loads(event["file_structure"])