Completion for flags does not have to be handrolled here, and I can use
the same struct strategies. I will have to rethink context usage, but
this will work in the long run, considering the track record of GitHub
CLI (gh) and Hugo and other large applications using Cobra.

Well, turns out making --config and --color-always persistent flags
broke other commands using "-c" and "-C" shorthands, so I
removed them for now, since they should be rather uncommon to use
for most people.

Also, I forgor to update the Nix hash. Oops. I fucked up. Lol.

Also, make sure the chroot gets exec'ed properly.

This brings in horizontal scrolling support for viewports.

This was messing with the search placeholder, and would only render
the first character until this was fixed.

…r viewport (TODO: add signing)