Feature: Multiple fullscreen notifications

[olfway]

Issue that this suggestion fixes

I want to have full screen notification when meeting starts so I don't miss it.
But also, I would like to have another full screen notification 15 minutes before, so I can finish my current task and prepare for the meeting

Solution description

It would be great if I can setup multiple full screen notifications, like 15 minutes before, 5 minutes before and 1 minute before

Alternatives considered

Have one full screen notification at 15 minutes before but also have a "snooze" button, so I can snooze it for 10 minutes, and then snooze it for 4 or 5 minutes

Additional context

No response