Ominous Bottle Backport

Backports functional(ish) ominous bottles to Fabric-1.20.1.

• Gives Bad Omen effect.
• Raid Captains drop when killed.
• Brewable to upgrade the effect tier.
• Craftable from 8 emeralds and a glass bottle in the middle.

Made for my friends as a learning experience due to no mods like this with fabric compatibility.
Expect horrible quality.