Disko: 1.4.0 Release, now with disko-install

We are happy to announce a new disko release.
Next to a bunch of important bug fixes, it also
features a new disko-install command.
This runs disko + nixos-install in one step.
It can be used to partitioning new systems but also also to repair existing NixOS installations by just mounting existing disks and re-running nixos-install.
See this documentation chapter for more details.