Update app.py

app.py

@@ -4,6 +4,7 @@ import backend
 from utils.session_state import initialize_session_state
 from utils.database import get_documents, insert_document
 from components.chat import display_chat_interface
+from utils.database import display_vector_store_info
 from components.knowledge_base import display_knowledge_base
 from components.upload import handle_document_upload
 from config.settings import APP_SETTINGS