Resolve  -Can no longer receive negative gold offers from AI 

Keep progress in notification scroll when updating 

Stat colors unified - for use in notifications, improvements, yield icons, etc

Gray out city state friend bonus when allied  - By Azzurite

By OptimizedForDensity:
- Minor reweight of AI policy selection 
- Stop transported units from being able to pillage tiles 

Fix getting settlers from ancient ruins on one-city challenge   - By MindaugasRumsa51