Auto-snooze

[leafcutterant]

(Spinning off part of #61 into its own issue -- I think it's easier to handle this way.)

From the quoted issue:

Auto snooze: After x minutes of alarm (e.g. 5 minutes), snooze for y minutes (e.g. 5 minutes), then start again for x minutes, until z time has passed (e.g. 1 hour).

I (too) would like to propose this feature, although a in a more clarified manner. The user could set a switch ("Auto-snooze", on/off) for an individual alarm. If turned on, and the alarm goes off, and the user doesn't respond to the alarm during the Reminder duration, the alarm would automatically go into snooze mode and go off again after the Snooze time elapsed. Such an alarm would go into auto-snooze each time it's not responded to, even if it has been snoozed manually before.

Reminder duration ("x") and Snooze time ("y") already exist as parameters in Settings. The point of auto-snooze is to make sure an alarm is not missed, so I don't think there's a need for limiting how long auto-snoozes should run ("z"). Therefore, there's no need to introduce new parameters.

It would be a very useful feature -- thank you for considering implementing it.