[vim] Use cterm colors on Windows (#1793)
[vim] Use cterm colors on Windows (#1793)

Truecolor does not work on default Windows terminal.
It is a problem in neovim GUIs.

https://github.com/sainnhe/edge/issues/5#issuecomment-565748240
janlazo/fzf,janlazo/fzf,junegunn/fzf,janlazo/fzf,junegunn/fzf,junegunn/fzf