fix: Remove show_copy_button (not in HF Gradio 6.0.1)

app.py

@@ -330,7 +330,7 @@ with demo:
         # Text Chat
         with gr.Tab("💬 Text Chat"):
             gr.Markdown("### Chat with Claude via text")
-            chatbot = gr.Chatbot(height=450, show_copy_button=True)
+            chatbot = gr.Chatbot(height=450)
             with gr.Row():
                 chat_input = gr.Textbox(label="Message", placeholder="Type your message...", scale=4)
                 chat_submit = gr.Button("Send", variant="primary", scale=1)