fix: update last notified correctly, notification delay (WPB-22701)

[sbakhtiarov]

https://wearezeta.atlassian.net/browse/WPB-22701

https://wearezeta.atlassian.net/browse/WPB-22701

What's new in this PR?

Issues

Application was not showing all notification when receiving a lot of messages.

Causes (Optional)

1. Messages for notifications are queried from the Messages table based on the message timestamp and conversation last_notified_date. Last notified date was not updated correctly and some messages were filtered out by query.

2. Notification updates are based on the activeNotifications property of NotificationManager. New notifications for same conversation are combined with already shown notifications. When multiple notifications are shown very fast activeNotifications property does not always have up-to-date list of notifications. This is causing incorrect updates based on out-of-date list.

Solutions

1. Get the timestamp of the last notified message and use it as last_notified_date for conversation.
2. Add small delay after adding/updating notification to let the NotificationManager update activeNotifications.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud