Classic Bad Omen fixes

This is a Datapack to revert the bad omen changes made in 1.21 I have tried this with multiple raid farms and i always seems to work.This Datapack still allows you to get ominous bottles upon killing the pillager captain and the bad_omen effect.

Do /reload to load the modpack and /function uninstall:datapack-bad_omen to uninstall the modpack