Release v1.4.0

Changelog for v1.4.0

New Features 🎉

• Add application installation and shell command features (#111) (by @AEnjoy in b261982)

Documentation 📚

• Merge the latest changelogs from the changelog branch (by @github-actions[bot] in 3c49f7a)

New Contributors 🌟

• @AEnjoy made their first contribution in #111

Full Changelog: v1.3.0...v1.4.0