Add support for media player integration (controls and display) in iOS

[quaec]

Hello everyone!

It would be great if there was a way to integrate a media_player entity with the iOS "now playing" feature. This gets displayed, for example, on the lock screen, like this:

Maybe one could choose a specific media_player entity in the Home Assistant companion app that gets integrated into iOS.

I've found some documentation for this on developer.apple.com.

Unfortunately I don't own a mac so I'm not able to help program this feature.

It should probably also solve this discussion / feature request about changing the volume of a media_player with the iOS devices hardware buttons.

There's also this discussion in the Home Assistant Forum.

Thanks!