[Suggestion] Add Optional Lock on Backpack Slot to Avoid Removing it When Swapping Armour

The armour swap mechanic with the Wooden Armour Stand is a really nice feature. However, the fact that the backpack slot is included in the swap sometimes causes issues.

I prefer to always use the same backpack rather than have multiple, as a result, my backpack is constantly being unequipped when I swap. To avoid this, I have to open the menu and take the backpack off before swapping, which can get a bit tedious.

Can you added a toggle lock on that slot in the inventory screen? With that, we can just click the lock icon and then not have to worry about the backpack being unequipped and we can toggle it off if we do want to swap backpacks.