Update app.py

app.py

@@ -123,8 +123,11 @@ def render_message(history):
         </div>
     </div>
     <script>
-        var chatbox = document.getElementById('chatbox-container');
-        chatbox.scrollTop = chatbox.scrollHeight;
+        function scrollToBottom() {
+            var chatbox = document.getElementById('chatbox-container');
+            chatbox.scrollTop = chatbox.scrollHeight;
+        }
+        scrollToBottom();
     </script>
     """