Update app.py

app.py

@@ -123,7 +123,7 @@ document.addEventListener('DOMContentLoaded', function () {
     const welcomeMessage = document.createElement('div');
     welcomeMessage.classList.add('avatar-container');
     const avatarImg = document.createElement('img');
-    avatarImg.src = 'https://i.ibb.co/9ZQhHvR/ai-avatar.png'; // Use a valid AI avatar image URL
+    avatarImg.src = 'https://th.bing.com/th/id/OIP.zeeoSeLcH19kuQ1ABNOGCwHaHU?rs=1&pid=ImgDetMain'; // Use a valid AI avatar image URL
     avatarImg.alt = "AI Assistant Avatar";
     avatarImg.style.width = "150px";
     avatarImg.style.height = "150px";