gitlineage.nvim: git history for selected lines in Neovim

There's a feature in Emacs that I've always loved: vc-git-region-history. You
select a range of lines, call the command, and Emacs shows you how those exact
lines evolved through git commits.

When I'm working in Neovim, I genuinely miss this. There are great git plugins
out there, sure, but none of them gave me exactly this: select lines, see their
history, navigate commits. And that's it. N...