Notifications Enhancement

[Feature Idea]: Notifications Enhancement

Background:

Especially when working in a team, the flood of notifications can be overwhelming.

Idea:

1. Next to the “Show only unread” filter, it would be very helpful to be able to filter by “comment notifications” or “status notifications” only. This might look like:

2. It might also be helpful to be able to mark notifications as unread again.
This would be useful in case a notification was accidentally marked as read. Or for keeping a notification as a reminder.

Could this be a helpful addition?