CPU and memory performance improvements 

ANR Bugfix: Only rebuild the minimap on drag, IF the minimap size actually changed.

Hopefully solved Android 11/12 notch areas on some phones

Fixed improvements not shown in map editor

By unciv-loof:
- Display players' average turn times in MP preview 
- Fix Korean tech boost UA 

Fixes for AI bugs - By ssamt

fix: preserve carrier payloads during paradrop and transform - By mvanhorn