Update app.py

app.py

@@ -30,11 +30,12 @@ def bot(history):
         yield history
 
 
-with gr.Blocks(css=css) as demo:
+with gr.Blocks(css=css, fill_height=True) as demo:
     chatbot = gr.Chatbot(
         [],
         elem_id="chatbot",
-        bubble_full_width=False,
+        bubble_full_width=True,
+        fill_height=True
     )
 
     chat_input = gr.MultimodalTextbox(interactive=True, file_types=["image"], placeholder="Enter message or upload file...", show_label=False)