refactor: prefer local alias for vim.api, vim.lsp

[clason]

• be consistent
• use longer name that isn't as likely to shadow
• rule of thumb: > 5 occurrences merits an alias

[just1602]

Ain't no maintainer, but I reviewed it and LGTM!

I'm really happy you're doing some cleanup @clason I was really not in the mood of switching to another picker, especially since fzf-lua doesn't support the send to qflist feature that I use a lot.

[clason]

Thanks, but don't get used to it; this is just a slap of paint and a bandaid to keep the ball rolling at least for the Nvim 0.12 release. The project itself is still on life support (but no longer critical), with its future under discussion.