fix pushing users

apps/app/src/server/routes/login.js

@@ -53,7 +53,8 @@ module.exports = function(crowi, app) {
     const preNotify = async(props) => {
       const adminUsers = await User.findAdmins();
 
-      props.push(...adminUsers);
+      const { notificationTargetUsers } = props;
+      notificationTargetUsers?.push(...adminUsers);
     };
 
     await activityEvent.emit('updated', activity, user, preNotify);