e82c7e5b83
Prior to this commit, i3lock was enabled by default in a way that doesn't work as of 317c972e8a (diff-aef862f6fd2c25092a3f17f974d8757285bf7baff6b80822cd142b7de1903ccfR451-R454)
Users attempting to use i3lock with this default setup would get locked out of their system.
This fixes it by enabling i3lock via its `programs` option instead of specifying the package directly.
Discussion over at https://github.com/NixOS/nixpkgs/issues/401891#issuecomment-2963378189