Fix rainbow armor recoloring other leather armor#3936

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iTwins wants to merge 3 commits intoSlimefun:masterfrom iTwins:fix/rainbow_armor

+34-10

Commits on Aug 5, 2023

Fix Slimefun#3931
iTwins
committed

Commits on Aug 9, 2023

optimized to use HashedArmorpiece instead of getByItem
iTwins
committed

Commits on Aug 11, 2023

fixed not emptying optional
iTwins
committed