Update app.js

app.js

@@ -1,6 +1,6 @@
 // app.js
 (() => {
-  const WS_URI = "wss://promptly-xnm3.onrender.com";
+  const WS_URI = "wss://promptly-az40.onrender.com/ws";
   const statusEl = document.getElementById("status");
   const connectBtn = document.getElementById("connectBtn");
   const disconnectBtn = document.getElementById("disconnectBtn");