Upscale default wallpaper (now default.png rather than default.jpg)
Set Vanguard to use a local animated wallpaper, as the file is quite
big after upscaling so I'm not putting it in this repo...
Deleted a bunch of wallpapers files from the repo but they're backed
up in syncthing
Removed overskride and nm-connection-editor from waybar shortcut, open
terminal with bluetoothctl and nmtui respectively instead
Move twinkle to only be installed on work machine
Move system/home/default.nix into system/default.nix,
system/home/desktop/default.nix into system/desktop.nix to reduce
unnecessary duplication. Moved everything in home/desktop up to home/
and adjusted paths accordingly. Moved wallpapers up to system/ since
it makes sense with where it's used.
Merge allowUnfreePredicate into single place again since it seems to
override rather than combine if used multiple times.
Install NoMachine on all machines again by default.
Move stylix config up to flake.nix as config wouldn't build without it,
also move wallpapers directory up to top level to match
Only enable git-sync where it's defined, rather than in home/default.nix