Chest and spawner data aren't transfered from world_base or world_caves

[HydrolienF]

• spawner
• chest

[HydrolienF]

Issue haven't been fix, but there is now a workaround. See https://github.com/HydrolienF/Underilla/blob/main/README.md#how-to-get-the-best-caves-as-possibles

[HydrolienF]

Spawner data are read from surface or cave biome since 1773c68