Enhanced Celestials Tweaks

Fixed:

- valid_moon_phases no longer resets to empty on launch.
- Forge: list options no longer reset to their defaults when you empty them.
- mob_cap_multiplier no longer disables the vanilla per-player mob cap.
- force_despawn_after_event now takes effect on a config reload instead of requiring a server restart.
- Event-end timers are now tracked per dimension, so the same event ending in one dimension no longer forces force_despawn_delay_seconds in another.
- Event gear no longer drops when mob_drops_event_gear = false
- The [overworld] settings section now only applies to the Overworld instead of every dimension.
- A rain or thunder event in one dimension no longer cancels the clear-skies requirement in unrelated dimensions.