Update app.py

app.py

@@ -288,7 +288,9 @@ with gr.Blocks(title="Audit Q&A", css= "style.css", theme=theme,elem_id = "main-
                 """)
 
     (textbox
-     .submit(start_chat, [textbox,chatbot], [textbox,tabs,chatbot],queue = False,api_name = "start_chat_textbox"))
+     .submit(start_chat, [textbox,chatbot], [textbox,tabs,chatbot],queue = False,api_name = "start_chat_textbox")
+     .then(chat, [textbox,chatbot, dropdown_sources,dropdown_reports], [chatbot,sources_textbox],concurrency_limit = 8,api_name = "chat_textbox"))
+    
     demo.queue()
 
 demo.launch()