Cold Ice Cubes should float again

In the latest Java Snapshot (26.4 Snapshot 8), Cold Sulphur Cubes no longer float in water for consistency with the Fast Sliding archetype. This behaviour is undesirable for Quality of Life reasons.

If a Sulphur Cube with the cold archetype falls off the ice and into water, in previous snapshots it was relatively easy to get them back to the surface: as they float, they would merely need to be hit from below. If they sink, however, then getting them up to the surface of the water is a chore. Since the point of the archetype is to create ice at the water surface, floating is a valuable QoL behaviour.

From a consistency point of view, ice floats. If the inconsistency is a concern, then it makes more sense for the Fast Sliding archetype to float than it does for the Cold archetype to sink.