Skin customization saves

[Vanadio]

The option to save skin customization for each bot place or for a given AI.

There could be a menu of saved skin customization directly on each of the 4 bot places or the option to save the complete lineup customization _togheter with_ a given AI, or both.

[GFX47]

I'm well aware the team setup screen needs a quality of life update.
Right now, the priority is on the multiplayer screens and the new modes but it's definitely something I want to work on next.