Refresh

• Added
  • ✨ all theme variables (including icons) customization
  • option to disable Node/Python/Ruby version checks via config
  • option theme_show_git_count to add the count of the number of files after each git status (e.g. staged5 deleted2)
• Changed
  • duration var units to seconds
  • add an explicit theme name to user vars to avoid potential conflict
  • replace grep dependency with the builtin string
  • refactor functions to display git prompt sha
• Fixed
  • errors on missing local Node/Python/Ruby versions