Perfect Plushies Fix

This mod fixes a tiny but critical bug in Perfect Plushies related to loot generation of chests that can cause loot chests to be empty at the least and cause complete server crashes at worst.

This is related to the error:

[Server thread/ERROR] [minecraft/PacketUtils]: Failed to handle packet net.minecraft.network.protocol.game.ServerboundUseItemOnPacket@6e6e4d50, suppressing error
java.util.NoSuchElementException: No value present

This mod simply adds a single mixin that checks if the value is optional. This mod does NOT fix the underlying issue that is causing this. Its merely a hotfix