#82

#75

#72

mehvahdjukaar's refactors

Piston duplication fix

Complain when mods return null from getCraftingRemainingItem instead of crashing

Create `ru_ru.json`

1.21 port fixes

Fix JEI plugin failure when no potions are registered to the zeta registry, fix crash from ForgeZGatherHints

Tidy up JEI integration, add RegistryAccess to ZGatherHints interface