Update app.py

app.py

@@ -284,8 +284,8 @@ async def exe(websocket,connected):
                 event = {
                 "type": "collabration",
                 'name': event["name"],
-            'cursorPos-line': event["cursorPos-line"],
-                    'cursorPos-ch': event["cursorPos-ch"],
+            'line': event["cursorPos-line"],
+                    'ch': event["cursorPos-ch"],
             'content': event["content"],
             }
                 websockets.broadcast(connected, json.dumps(event))