disables_back_slot config half working

[ArkVeil]

BeansBackpacks 2.0.2

The disables_back_slot config option only works when doing a specific sequence of actions.

Working case:

If you have a backpack equipped in the backslot, and then try to shift-right click an item into your chest slot, it will stop you by saying "x cannot be worn with x backpack". In this case, the quark backpack and create back tanks.

Broken cases:

• If you directly equip the banned item by moving the item into your chestplate slot, it ignores the config option entirely. Right clicking to equip from hotbar or inventory also ignores it completely.
• Already wearing the banned item does not block you from putting on a bean backpack.

[BeansGalaxy]

Awhile ago I changed disable_back_slot to only disable the rendering since it was causing a lot of compatibility issues. I must've missed something that still disables it. I'll double check that everything's working consistently.