Build and release for Apple TV

[willwade]

Michael raised this the other week. That we come across users with a large tv and want to use that instead of a smaller device. Strikes me we could do that fairly easily by adding the tv target.

[gavinhenderson]

So while we could just add a new target the app would look terrible and be basically unusable.

However, getting it running on TV OS is still fairly simple. Instead of using SwiftUI you use TVUIKit, but its all still written in swift with the same APIs so it would just be a case of building up the simple TV UI then wiring in all our existing logic, which would be fairly simple. I reckon it would be about a weeks worth of work max and that would give us a really great TV app