[Redstone] ITEM_USE only works when item is in bag-0-slot-0

[chrisfarms]

due to a misused variable here: https://github.com/playmint/ds/blob/main/contracts/src/rules/InventoryRule.sol#L89

ITEM_USE can only be called for an item that is in bag-0-slot-0 or bag-1-slot-1 or bag-2-slot-2 🤦