git: Add work user configuration
makepkg: Move makepkg config for upcoming support

[1] https://projects.archlinux.org/pacman.git/commit/?id=80eca94c8eec7dfeda02eff437309c4e20931afd
xbmc: Remove custom env build config

This PR was closed and is instead going to be properly implemented in
xbmc/xbmc#5895
Convert tabs to spaces

Yes. I'm a convert
sxhkd: Remove now unused bindings

These may come back later once I have my apartment setup a little better
git: Properly override for work user config