[mail request] Add optional timeout and restart with phone movement

[92lleo]

this app could be particularly useful to use in map applications, for the purpose of navigating by looking on the map. But it would be also nice if it could turn the screen off if the device rests still, without any movement, for more than a minute, which happens when you take a break

Sounds like a good idea for me, I'll put this on my todo after #1