feat: rest of lxc common, working dns configuration

feat(systems/hosts/arwen): libreoffice

wip: lxc stuff

feat(systems/hosts/arwen): add a few packages to systemPackages...

feat(systems/hosts/alice): include some core packages in a temporary way for now

feat(roles/shell): move some packages here

feat: add alice and components needed for it

feat(arwen): minimum fonts

feat: restructure

feat: initial version