fzf/Keyshort/Pipe rg search to fzf and open result in nvim

• fzf/Keyshort Keyshort CLI command
  • Pipe rg search for search-query into fzf, and open result in an editor #card
    • rg/--files-with-matches
      • nvim "$(rg --files-with-matches <search-query> | fzf)"