Simplify on connect (#11176)

frigate/comms/ws.py

@@ -50,10 +50,6 @@ class WebSocketClient(Communicator):  # type: ignore[misc]
         class _WebSocketHandler(WebSocket):  # type: ignore[misc]
             receiver = self._dispatcher
 
-            def opened(self) -> None:
-                """A new websocket is opened, we need to send an update message"""
-                threading.Timer(1.0, self.receiver, ("onConnect", "")).start()
-
             def received_message(self, message: WebSocket.received_message) -> None:
                 try:
                     json_message = json.loads(message.data.decode("utf-8"))

web/src/api/ws.tsx

@@ -65,7 +65,13 @@ function useValue(): useValueReturn {
         setWsState({ ...wsState, [data.topic]: data.payload });
       }
     },
-    onOpen: () => {},
+    onOpen: () => {
+      sendJsonMessage({
+        topic: "onConnect",
+        message: "",
+        retain: false,
+      });
+    },
     shouldReconnect: () => true,
   });