Export / Backup alarms

[ludg1e]

Is your feature request related to a problem? Please describe.
Please allow to export alarms into a file.

Describe the solution you'd like
Ability to export and import alarms as you can do already with settings.

Use case
Without this feature it's very difficult to port all my alarms to other devices.

Describe alternatives you've considered

Additional context

[BlackyHawky]

This is obviously an improvement that needs to be made.
(Just like saving timers, world cities in the clock tab and why not ringtones defined in the alarm and timer settings.)

I didn't work on it when I added the save/restore settings feature, as it would have taken longer.

Currently, I don't know if I'll be able to make this improvement because it can't be managed in the same way as the settings.

I'll give an update in this post.