feat(roles/gaming): move steam, add lutris

feat(roles/shell): move to subdir

feat(roles/nvidia, roles/plasma, hosts/alice): nvidia, plasma, alice setup

feat(roles/qutebrowser, hosts/arwen): qutebrowser role and add to arwen

feat(roles/steam, hosts/arwen): steam role and enable for arwen

feat: hyprland, kitty, shell env

feat: initial version