Mails read on other devices still showing in the notifications forever.

[AmrithVengalath]

Describe the bug: Notification for the read mails are not disappearing from notification bar once they are read on other devices. It only happens if we have existing notifications from Protonmail, then a notification is receive from another app after that we receive one more notification from proton mail. Now the old notifications are stacked together and new one is shown separate. Sometimes the mail notifications received after receiving notifications from other apps are still staying there with the old stack once opened on other device but gets removed once we open the mail only the ones receive after notifications from other apps . Still the notifications in the old stack remains there. Old or new stack all Notifications read by opening the app are removed.

Live App Version: Proton Mail 4.2.3 (7709)

Device + OS version iPhone 13 ... iOS 16.3.

Can you reproduce the problem each time? Yes

Steps to reproduce the behavior:

1. Receive an email
2. Receive a notification from other apps
3. Now receive another mail
4. Now it shows new email notification separate from old email notifications (all old email notification are stacked together except new one)
5. open any of the email in the old stacked notifications on other device
6. Voila those are not removed from notification bar. It stays there forever.

Expected behavior

Notifications of emails read on any device or marked as read disappears from notification bar as in android not flooding the notification bar.

Screenshots(If applicable) IMG_2881