Update app.py

app.py

@@ -2,6 +2,7 @@
 import streamlit as st
 from modules.database import initialize_mongodb_connection, create_user, create_admin_user, create_student_user
 from modules.auth import authenticate_user, register_user
+from modules.admin_ui import admin_page
 from modules.ui import (
     main,
     login_register_page,