Update app.py

app.py

@@ -3,9 +3,9 @@
 import os
 import tempfile
 import streamlit as st
-# from streamlit_chat import message
+from streamlit_chat import message
 # https://pypi.org/project/streamlit-chat/
-from streamlit-chat import message
+# from streamlit-chat import message
 from rag import ChatPDF
 
 st.set_page_config(page_title="ChatPDF")