Mob AI Tweaks

-Fixed missing tag entries for tameable mobs that don't heal and mobs villager clerics can heal.

-Fixed Axolotls and Allays not being blacklisted from tamed mobs passive regeneration change, this caused them to heal twice as fast compared to other tameable mobs.

-Fixed Cleric villagers not being able to find any target to heal. They can now also target undead mobs.