Added participant push notification function to the app version.
It can be used by updating to iOS app version v2.1.1 and Android app version v2020.06.29.1.
By pressing the "Push Notify Entrant" button on the room entry page and enabling the setting,
You will receive a push notification when someone enters your room.
Press the push notification to open the room in the app.
*If the same person re-enters within 3 minutes, you will not be notified.
*Notifications can be set even if you are not the room owner.
*Twitter login is required for the PC version of WebPush notifications, but not for the app version. (Push notification permission required in app settings)
*Not available in Kindle Fire version.