Option to disable notifications on DND

[eevleevs]

Please add an option to disable sending notifications to the watch when the phone is on do not disturb.
The idea is that if you are using the watch only to control music without looking at the watch (e.g. at night), you do not want to have anything else possibly covering the music control. Gadgetbridge has this.

[clach04]

That's a really neat feature request 👍

[clach04]

@eevleevs please could you update the tile to include the word option or optional (to match the body)? I initially misunderstood the request before reading the entire request.