Expand World Spawns

Allows changing spawns.

v1.13
- Fixes the global key counting interfering with world modifiers and other key related features.
v1.12
- Fixed for the new update.
v1.11
- Fixed for the new update.
v1.10
- Improves the config loading to show the actual file and row numbers when an error occurs.
v1.9
- Fixes the field faction not working.

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