Packaging for various platforms

[dahlia]

For better access, it would be good to have platform-specific packages:

• Chocolatey (or Scoop) for Windows
• Homebrew (or Homebrew Cask) for macOS
• Snap (or Flatpak) for Linux
• Action(s) for GitHub Actions (e.g., setup-seonbi)

Don't have to make all of them at once. Before starting each one, file a dedicate issue for it.

[dahlia]

AppImage is worth to give a try. See also https://github.com/gbrsales/cabal-appimage.