JJThunder King of the Hills

This is a replica of my terrathunder 1.19 version backported to 1.18.2. Most of the features are the same except for the following:

• Removed mangrove swamp, mangrove caves, and deep dark as they don't exist in 1.18 versions.
• Added nether aquifers, which were supposed to be in 1.19 versions, but for some reason, cannot generate in those versions.

Note: 1.18 versions had a fundamental bug where data packs that adjusted biomes cannot randomize seeds. This is fixed by integrating seedfix into my 1.18.2 version of the mod thanks to justsnoopy30. Therefore, i will not be releasing a datapack version of Terrathunder 1.18.2 as users would end up playing in the same seed.