LifeSteal datapack

update to 1.21.11

• changed heart component: custom_model_data -> item_model

• structure block now being consumed
• added sound of using heart
• bug fixed: the heart was deleted first in slots, now the one that is used

• The maximum number of hearts and starting hearts are now configurable using this command:

/function lifesteal:options {"heartsMax":20,"heartsBase":10}

• Hearts item still knowledge book
• Texture pack added
• Almost all scoreboards now have the prefix "erk." to avoid possible errors with similar scoreboards

• The maximum number of hearts and starting hearts are now configurable using this command:

/function lifesteal:options {"heartsMax":20,"heartsBase":10}

• Hearts item changed from knowledge book to structure block
• Texture pack added
• Tick function optimized
• Almost all scoreboards now have the prefix "erk." to avoid possible errors with similar scoreboards