Balanced Keep inventory

This datapack aims to balance the keep inventory while keeping gameplay the same.

All it does is leave keep inventory on, instead, when a player dies, that player looses a heart permanently. However, players can craft the "Heart Crystal" in order to regain hearts, and players can gain up to 40 hearts.

So instead of vanilla Minecraft's keep inventory dictate whether you completely lose everything or have no consequences for dying, this datapack adds keep inventory while adding a consequence for dying.

When a player is on their last permanent heart, when they die, they will drop their items on death, just like if their keep inventory is on. They do not lose or regain a heart.

The "Heart Crystal" is crafted with 4 diamonds, 4 gold ingots, and a golden apple.