Small fix to messages

src/app.py

@@ -430,7 +430,7 @@ with gr.Blocks(css=custom_css, title="Fed AI Savant", theme=gr.themes.Soft()) as
             chat_interface = gr.ChatInterface(
                 fn=respond_for_chat_interface,
                 type="messages",
-                chatbot=gr.Chatbot(height=600, show_label=False),
+                chatbot=gr.Chatbot(height=600, show_label=False, type="messages"),
                 textbox=gr.Textbox(placeholder="Ask about Fed policy, rate decisions, or FOMC meetings...", scale=10),
                 # Disable examples caching to prevent the serialization error
                 cache_examples=False,