Config fixes

[Owen3H]

• A little bit more project QoL.
• Renamed SyncConfig to RMConfig (RandomMoons) as it also contains unsynced entries.
• Added private setters to the regular ConfigEntrys.
• Removed the static keyword from all config entries as they should be referenced via an instance.
• Replaced all references to synced variables that caused them to always have their default value.
  • SyncConfig.SyncedVar -> RMConfig.Instance.SyncedVar