Update src/streamlit_app.py

src/streamlit_app.py

@@ -12,7 +12,7 @@ import streamlit as st
 import yt_dlp
 import os
 import textwrap
-from langchain.schema import Document
+from langchain_core.documents import Document
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain_chroma import Chroma
 from langchain_google_genai import GoogleGenerativeAIEmbeddings