The `caves` and `floating_islands` noise settings no longer generate as intended

In the snapshots since the noise_settings files were simplified with material_rule, the caves and floating_islands presets in data\minecraft\worldgen\noise_settings\ do not generate any terrain (apart from the terrain that encapsulates trial chambers).

I noticed that the final_density and depths parameters have switched values.

This is similar to MC-306850 .

I am attaching the files.