Cleanups:
- Removed unneeded neovim.meta.description reset.
- Remove unnecessary -x checks in `postBuild`.
- Use a ${placeholder "out"} if needed.
Changes:
- Switch to symlinkJoin, so e.g manpages link to the environment (#87929).
- Use nvim-node from $out/bin/ just like all other providers.
- Compute all arguments to makeWrapper in pure Nix "before" `postBuild`.
- Prevent double wrapping in case `configure != {}` and rplugin.vim
needs to be generated.
Co-authored-by: Silvan Mosberger <contact@infinisil.com>
85f6da6eed