Add support for Neovim/Vim GUI clients #756
Description
The feature request
On my system, trying to open nvim (#517) directly doesn't achieve anything as it's expecting a terminal to render it.
I believe the person that submitted that PR had /usr/bin/nvim linked to an external client, but at least on Arch, installing one of the available GUIs for neovim through pacman don't override the original path, so the current implementation does a whole lot of nothing. The same is true with vim.
Proposed solution
It would be wiser to explicitly include entries for these external GUI clients, since they're more likely to exist at their respective paths.
Including all vim/neovim clients would be very difficult to maintain, but these three are packaged by enough distributions that it's easy to justify.
Additional context
No response