ios app improvements as a remote

a couple of things i'd like to see in the ios app, not sure if they're all doable but i'll post anyway:

 

- control playback volume with the physical buttons (this shoud be doable since i already have a remote mouse app that can change the mac volume this way )

 

- control playback (mainly pause/play) from the lock screen

 

I'd like that very much!

2021 clean-up: