sysutils/nnn: Update to 4.9

- config option NNN_ARCHMNT to specify archive mounter utility
- key ^y to jump to next young file
- filter adjustment when opening context from plugin
- properly update mode after chmod
- pre-fill selected file name to create link if sel is preferred over
  hovered
- fix crash when PWD is empty
- make quitcd.bash_zsh POSIX-compliant
- nmount - support udiskctl as default
- preview-tui - support wezterm split size percentage
- preview-tui - move to bash for environment manipulation through
  arrays
- fzopen - handle empty selection
- finder - use default path to find
- add icons for djvu files
- support Nerd Fonts v3.0.0 and above (older versions are broken by
  v3.0.0)

https://github.com/jarun/nnn/releases/tag/v4.9

(sjmulder)