Removed the deprecated `doFineGrainedBiomes` option from `TerraMinestomWorldBuilder` and associated classes. Updated biome management to use `IdentityHashMap` and added additional tracking for created biomes. Upgraded Minestom version to `1_21_6-a40d7115d4`.
Introduced a `doFineGrainedBiomes` flag to allow fine-grained biome control per chunk. This helps mitigate client disconnection issues caused by a Minestom biome encoding bug, with a plan to deprecate once the bug is resolved. Adjusted relevant classes and the example implementation to support this feature.
Replaced "Custom" with "UserDefined" in biome classes, factories, and references for consistency and clarity. Updated relevant imports, method signatures, and internal logic to align with the new terminology. This change improves readability and better represents the purpose of these biome-related components.
Renamed `MinestomPlatform` to `TerraMinestomPlatform` and updated `TerraMinestomWorldBuilder` to utilize the platform instance directly. Simplified world builder initialization and improved code clarity.
Christian Bergschneider
Zoë Gidiere