Adaptive Difficulty

Ported from 1.21.4 to 1.21.8

• Fixed an issue that caused Cave Spiders in inflict poison 8 or 16
• Fixed an issue that caused Bees to inflict poison 11 or 15
• Fixed an issue that caused the wither effect from the Wither's attack skulls to be applied incorrectly for the difficulty selected
• Fixed an issue that prevented the constant regen of health and hunger while in peaceful mode
• Changed the damage scaling based on difficulty to be ignored for player on player damage meaning all PVP uses the server setting still making sure PVP is fair.
• Changed how the settings are saved on players under the hood and how the stuff updates automatically when changing dimensions