disable all icons but make path colorful

[nenahp]

I've disbaled icons to use $LS_COLORS for files picker:

          fd_opts = [[--color=always --type f --follow -E .git]],

This custom a formatter to color my path for buffers/oldfiles/git_diff, now I can disable all my icon:

        formatters = {
          -- color_path = {},
          dirname_first = {
            _to = function(o)
              local _, hl_dir = utils.ansi_from_hl(o.hls.dir_part, 'foo')
              -- local _, hl_file = utils.ansi_from_hl(o.hls.file_part, 'foo')
              local _, hl_file = utils.ansi_from_hl('MiniIconsOrange', 'foo')
              return (exec_lua [[
                  return function(s, _, m)
                    local _path, _utils = m.path, m.utils
                    local _hl_dir = "%s"
                    local _hl_file = "%s"
                    local tail = _path.tail(s)
                    local parent = _path.parent(s)
                    local devicons = require('fzf-lua.devicons')
                    local _, hl = devicons.get_devicon(s)
                    local _tail
                    if hl then _tail = FzfLua.utils.ansi_from_rgb(hl, tail) end
                    if _tail then
                      tail = _tail
                    elseif #_hl_file > 0 then
                      tail = _hl_file .. tail .. _utils.ansi_escseq.clear
                    end
                    if parent then
                      parent = _path.add_trailing(parent)
                      if #_hl_dir > 0 then
                        parent = _hl_dir .. parent .. _utils.ansi_escseq.clear
                      end
                    end
                    return (parent or "") .. tail
                  end
                ]]):format(hl_dir or '', hl_file or '')
            end,
          },
        },

[ibhagwan]

Looks really nice @nenahp, if you like it we can add it as another formatter option