feat: auto-login prompt choosing between ruther and fbw on tty1

feat: use edge-ruther as remote nix builder with raised nofile limit

feat: allow usage of Nixpkgs OpenGL programs

feat: core dumps service for putting core dumps to system folder

Rather than putting core dumps to currently working directory,
this makes it so that core dumps are outputted to /var/lib/dumps.
This makes it nicer 1. to find dumps, 2. to actually have multiple
dumps without them being overriden as the format of the name is chosen
as well.

The default format of the name is to put in unix timestamp, pid of the
process and path to the process.

chore: add grub bootloader with lvm support

feat: add grub with file copy to /boot