Nether Ceiling Nerf

Summary:

This datapack changes the nether's build limit to 128 and makes the bedrock ceiling few blocks thicker (in an attemp to prevent players using ender pearl exploits and building on top of it)

Fun fact:

The nether actually was 128 blocks high before release 1.2.1, but for some reason it was extended to 256 in that update

Because it makes no sense, and was probably a bug introduced by the level format change from mcregion to anvil, which increased the overworld height to 256, this datapack can also be counted as a bugfix

The nether ceiling always has 3 solid layers of bedrock (vanilla had only 1)

Build limit has been changed as well:

Should work on any version from 1.19 to 1.21.8 (and newer unless mojank decides to make changes for no reason again)

This datapack overrides:

data/minecraft/dimension_type/the_nether.json
data/minecraft/worldgen/noise_settings/nether.json

Could cause incompatibilites with other nether-related worldgen datapacks/mods