Update app.py

app.py

@@ -122,14 +122,18 @@ def render_message(history):
     messages_html += """
         </div>
     </div>
-  <script>
+ <script>
      function scrollToBottom() {
         var chatbox = document.getElementById('chatbox-container');
-        chatbox.scrollTop = chatbox.scrollHeight; 
+        requestAnimationFrame(function() {
+            chatbox.scrollTop = chatbox.scrollHeight;
+        });
     }
+    
     window.onload = function() {
         scrollToBottom();  
     };
+    
     setTimeout(scrollToBottom, 0);
 </script>
     """