Editor Compatibility

Prompter can work with any editor, but it was designed with nvim in mind.

function	nvim	vim	nano	code,etc
open	✅	✅	✅	✅
copy to clipboard on exit	✅	✅	🙅‍♀	🙅‍♀
insert history prompt	✅	✅	✅	✅
copy inserted history prompt to clipboard	✅	✅	🙅‍♀	🙅‍♀