Https Localhost Versions Save

• Fix on Windows for username with spaces
• Fix and performance improved for Catalina users
• Minor fixes
• Dependency update
• Improved installation (sudo not always needed)
• Performance improved in the first run

Exposes certificates to use them with a web framework different from Express.js.

• Update to mkcert v1.4.0: macOS Catalina compatibility and more. https://github.com/FiloSottile/mkcert/releases/tag/v1.4.0
• Add REINSTALL=true env variable to force reinstall certs.
• Check for updates if running as compiled executable (downloaded from GitHub releases).
• Update dependencies.