fix: added commit to admin change

app/blueprints/admin/routes.py

@@ -123,6 +123,7 @@ def switch_course_admin(new_course: int):
     user = flask_login.current_user
     if get_course(new_course):
         user.active_course_id = new_course
+        db.session.commit()
         current_app.logger.info(f"Admin {user.id} switched to course ID {new_course}")
     return redirect(url_for("admin.admin"))