Update app.py

app.py

@@ -75,7 +75,7 @@ with gr.Blocks(css=css, fill_height=True) as demo:
     gr.HTML(DESCRIPTION)
     gr.ChatInterface(
         fn=generate,
-        chatbot=gr.Chatbot(scale=1),
+        chatbot=chatbot,
         additional_inputs=[
             gr.Textbox(value="You are a helpful assistant.", label="System message"),
             gr.Slider(minimum=1, maximum=30720, value=2048, step=1, label="Max tokens"),