Update app.py

app.py

@@ -112,11 +112,11 @@ with gr.Blocks() as demo:
 
     pdf_upload.upload(fn=render_first, inputs=[pdf_upload], outputs=[show_img]) 
     # Event handler for submitting text and generating response
-    submit_btn.click(
-        fn=add_text,
-        inputs=[chatbot, txt],
-        outputs=[chatbot],
-        queue=False
+    submit_btn.click(        
+    fn=add_text,        
+    inputs=[chatbot, txt],        
+    outputs=[chatbot],        
+    queue=False    
     ).success(
         fn=generate_response,
         inputs=[chatbot, txt, btn],