Better support for Samsung DeX and other large screen devices

Recently, I’ve been making more use of Samsung DeX on Dewott for various reasons, not least because it provides even more unique ways to break the OVO apps. :)

The OVO Energy app works fairly well on DeX, but it would be nicer if I didn’t have to move my mouse through an entire city just to switch between Payments, Usage and Account tabs. If the app could also scale up a bit better to take advantage of the available space, that would also help a lot when using it via DeX or on any larger screen.