Release v5.8.1

• chore(release): bump version to 5.8.1 (Dries Peeters)
• fix(quotes): align send-email route with util return tuple (fixes #652) (Dries Peeters)

📦 Build Status

Desktop Applications

✅ Windows build: Success
✅ Linux build: Success
✅ macOS build: Success

Mobile Applications

✅ Android build: Success
✅ iOS build: Success