Feat: PT_BR localization

Added a config option to specify additional dimensions
for which pregenerated files should be copied when a
new world is created.

This allows modpack makers to set up custom dimensions with pre-built terrain and structures.

clarifed the structure and available fields, particularly regarding the 'display' and 'dimension' sections.

Updated the default chunk generator to "multi_biome_void"

…forge 1.21.1 specifically

- also added a bit of logging to help diagnose issues packdevs may run into

 - Changed ADDITIONAL_PREGEN_DIMENSIONS from StringValue to ResourceLocation>
  - Parsing now happens at config read time via custom read() method
  - Config format uses SNBT list: ["namespace:dim1", "namespace:dim2"]
  - additionalPregenDimensions() method now just returns ADDITIONAL_PREGEN_DIMENSIONS.get()

That was probably overkill/unneeded and ugly to read

Replaced the custom BaseValue implementation for additional pregen dimensions with a dedicated ResourceLocationListValue class.

Also updated usages of the moved configs

Removed the fallback to global config for additional pregen dimensions.

[Dev] Added support for additional pregen dimensions and updated Docs

Added `allow_lobby_spectators` to control this
Also recommended to set `lobby_game_mode` to "spectator" if this is true

Was trying to recreate server team unnecessarily...
Also note if autoclaim succeeded and don't redo it on next level load
Added ``/ftbteambases redo_autoclaim` command to force-redo autoclaim

FTBTeam/FTB-Mods-Issues#1979