convert to using flake-parts and easy-hosts for the flake system. This
allows me to remove my poor file-system based code and replace it with
the code done in easy-hosts. Which also has good knock-on effects.
This change factors users out of hosts, which is probably a good change
since users aren't a nixos-module, but aren't completely untangled
either.
I'm going to leave users broken for a minute as I decide exactly how I
want to handle them.
The old .gitignore contained the hypr icons path. Newer versions of nix
did not want to rebuild because hypr/icons didn't exist in git. The fix
was simple to move the .gitignore from the home directory to inside of
the icons folder and include it. That way icons can be added and the
folder exists.
Oh--this also adds musescore because that was the impetus to fix this...
It has nothing critical to do with the commit, I'd just rather have them
in one rn
