1.0.4 - 1.21

Additions

• Added a config file! You can control what mobs spawn, spawn weights, group size, alongside being able to config world features like river reeds and seashells
• Bears can spawn with a baby, like vanilla Polar Bears, it is rarer than a normal spawn

Changes

• Sharks no longer attack other low health sharks
• Added a 10s cooldown to the bear between each roar, so it doesn't trigger continuously when hunting groups
• Added a 1.5 block step up to the bear so doesn't get stuck in blocks