UI backend update and UX improvment (v1.0.1)

What changed?

The backend UI system was redesigned.
This allows for better UX like in this image where the "Yes" button is now in a diffrent box then the non clickable "Are you sure?" text.

Is multiplayer still compatible?

LAN multiplayer should still be compatible between this version (v1.0.1) and the previous version (v1.0.0).