updated then under launch method. (#24)

- updated then under launch method. (88b63da4e8d7f8694cb3e68108f160baa915f969)

Gradio_UI.py

@@ -288,7 +288,7 @@ class GradioUI:
                 self.log_user_message,
                 [text_input, file_uploads_log],
                 [stored_messages, text_input],
-            ).then(self.interact_with_agent, [stored_messages, chatbot], [chatbot])
+            ).then(self.interact_with_agent, [stored_messages], [chatbot])
 
         demo.launch(debug=True, share=True, **kwargs)