This enables half of the shortcuts for switching keyboard languages
when EXWM launches.
The cyrillic ones are commented out because Emacs doesn't start
otherwise, I've no idea why and don't care at the moment.
vauxhall (my laptop) now has an additional screen connected at home,
but sometimes I use that screen for my desktop computer (nugget).
This refactors the randr configuration for EXWM to support somewhat
more dynamic, multi-monitor layouts and adds key bindings to toggle
between some of the different configurations I want.