Add option to attack in “letterbox” format on 4:3 tablets

I love attacking on my phone because I can see so much more of the base, but I also like the larger screen of the tablet. I wish there was a “letterbox” option that allowed me to attack using a 16:9 or 2.5:1 format on my 4:3 tablet.

I’d be happy with letter boxing on my iPad, which doesn’t have as wide an aspect ratio as modern iPhones.