This update was huge.

What's new?

• Complete gui rewrite (looks pretty now!)
• Added reboot to payload option
• Correctly update the app.
• Update the app with latest libnx, ready for fw 9.0.0.
• Cleaned up code!

What's next?

• Add touch support.
• Add "extras" tab with more useful atmosphere functions.
• Display current fw / atmosphere version.

Thanks again to @sudot0ph for the app icon, as well as the reboot icon!