Aether Pre-release

The Aether pre-release is the only pre-release for 1.21 which adds drowned duplication.
== Changes ==
=== Drowned ===
* Can now obtain nautilus shells in their main hand and offhand, duplicating. The drowned then become passive. The drowned despawn emitting reverse_portal particles with Drowned TAG_Boolean set to true and respawn after 1 second.
=== Aetherrack ===
* Now drops diamonds, still making diamonds non-renewable.