Hey! A quick hotfix, fixing the player 3 and player 4 instant exploding when trying to start a new game. Also; workshop maps should now be available again, but you might need to refresh and convert!

Changelog:
- Changed how map borders, floor types, and weather stuff are stored (more efficient), so if you notice anything weird with loading/playing a map, please report it
- Fixed artboard becoming unusable on low graphics
- Fixed old maps are shown at bottom of the map list
- No more mass error spam
- Debris from explosions doesn't change to brown tank when falling on the floor
- Player 3 and 4 , should not blow up anymore

