[Feature Request] Dimension/World Gen

[Stereo528]

Is your feature request related to a problem in the mod? Please describe.
Partially, and also just needed for the general direction we want to take the mod. Our Dimension is the mainstay for all of the content being added in Pastel Wonderland in version 0.1, and we currently have 0 places to put it besides the creative inventory.

Describe the feature you'd like added
Well, obviously a dimension and world/biome generation. This will require us to possibly use an embedded datapack for portal registration and building, as well as our own portal block. We have to do this since most APIs are for Forge or Fabric only and we are using Architectury which means it would be easier if we could just do it our own way instead of writing it specifically for multiple loaders.

Describe alternatives you've considered
well, we could have everything in the overworld, however, this throws off everything as we have our own blocks and palette, and there is an annoying bug in 1.18.x where you add biomes and all biomes in general just shrink in size when generating a world. There's not really a way around that...

Additional context
As stated above, we essentially need a dimension to house all of our ideas for lore (which isn't a whole lot currently, planned for 0.4 era), and blocks, and structures (0.3, along with entities, or 0.4, as a standalone update).