[1.16.5] Curios slots shrinking client-sided issue

[SSKirillSS]

Versions:

• Curios: 1.16.5-4.0.5.3
• Forge: 1.16.5-36.1.13+

Observed Behavior:

Empty slots in the CuriosAPI inventory. It will be automagically fixed after reopening inventory

Expected Behavior:

CuriosAPI slots positions should be recalculated if slots amount was increased/decreased

Steps to Reproduce:

1. Equip any item, which unlocks additional curios slots (For example, any belt from the Relics mod)
2. Roll down the CuriosAPI menu to the lowest slot in the list
3. Unequip item mentioned before. You will see something like this: