How did you configure the notification system?

In iOS, setting up the notification system usually involves several steps:

1. Request permission from the user to receive notifications using UNUserNotificationCenter.

import UserNotifications

UNUserNotificationCenter.current().requestAuthorization(options: [.alert, .sound, .badge]) { granted, error in
    if granted {
        DispatchQueue.main.async {
            UIApplication.shared.registerForRemoteNotifications()
        }
    }
}

2. Register the device to receive remote notifications (push notifications).

3. Handle received notifications in the UNUserNotificationCenterDelegate delegate methods.

4. Configure local notifications if needed, using UNNotificationRequest.

Thus, the setup includes requesting permissions, registration, and notification handling.