Don't constrain chatbot height

app.py

@@ -354,20 +354,19 @@ with gr.Blocks(css=".gradio-container {background-color: lightgray} ") as block:
                                             show_label=False, lines=1, type='password')
 
     with gr.Row():
-        # with gr.Column(scale=1, min_width=240):
-        my_file = gr.File(label="Upload a file", type="file", visible=False)
-        tmp_file = gr.File("videos/Masahiro.mp4", visible=False)
-        tmp_file_url = "/file=" + tmp_file.value['name']
-        htm_video = f'<video width="256" height="256" autoplay muted loop><source src={tmp_file_url} type="video/mp4" poster="Masahiro.png"></video>'
-        video_html = gr.HTML(htm_video)
-
-        trace_chain_cb = gr.Checkbox(label="Show chain", value=False)
-        trace_chain_cb.change(update_foo, inputs=[trace_chain_cb, trace_chain_state],
-                              outputs=[trace_chain_state])
-
-        # with gr.Column(scale=3):
-    with gr.Row():
-        chatbot = gr.Chatbot()
+        with gr.Column(scale=1, min_width=240):
+            my_file = gr.File(label="Upload a file", type="file", visible=False)
+            tmp_file = gr.File("videos/Masahiro.mp4", visible=False)
+            tmp_file_url = "/file=" + tmp_file.value['name']
+            htm_video = f'<video width="256" height="256" autoplay muted loop><source src={tmp_file_url} type="video/mp4" poster="Masahiro.png"></video>'
+            video_html = gr.HTML(htm_video)
+
+            trace_chain_cb = gr.Checkbox(label="Show chain", value=False)
+            trace_chain_cb.change(update_foo, inputs=[trace_chain_cb, trace_chain_state],
+                                  outputs=[trace_chain_state])
+
+        with gr.Column(scale=3):
+            chatbot = gr.Chatbot()
 
     with gr.Row():
         message = gr.Textbox(label="What's on your mind??",