v1.3.198 exact Dynamic Difficulty nameplate fix:
- Inspected Dynamic Difficulty 1.1.1 directly.
- Its crosshair-only and line-of-sight checks are in LevelPlateHandler.shouldShowName(LivingEntity).
- For Undefeatable mobs only, that method now returns true immediately.
- Dynamic Difficulty still modifies the name with the level and still applies its stats.
- Normal mobs retain Dynamic Difficulty's configured nameplate behavior.
- Existing Undefeatable random scale integration remains unchanged.
