App v4.0.3

See the assets to download this version and install.

What's Changed

• Release v4.0.3 - macOS Universal support, security fixes and UI improvements by @Tsugumik in #28
• Fix theme problems by @Tsugumik in #29
• Unify background by @Tsugumik in #30

Full Changelog: app-v4.0.2...app-v4.0.3