feat(hosts/alice): nextcloud-client

feat: obs

feat(hosts/arwen): flatpak

feat(hosts/alice): enable tailscale

feat(hosts/alice): enable flatpak

feat(roles/graphics): merge graphics roles

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

fix(hosts/alice): remove option that was removed

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

feat: add alice and components needed for it