Backend: Improved Enforced Config Values

[lunaynx]

Dependencies

• Backend + Improvement: Async Repo Reload Event Handlers #6064 (required to ensure priority is actually respected for RepositoryReloadEvent)

What

This PR includes several improvements to the Enforced Config Values system, listed in the changelog.

Changelog Technical Details

• EnforcedConfigValues now supports enforcing enum values without crashing. - Luna
• EnforcedConfigValues will now store the user's original config value and restore it once the value is no longer enforced. - Luna
• EnforcedConfigValues is now applied early on game start and whenever the repo is reloaded, without requiring the player to open a GUI or be on SkyBlock. It also no longer tries to apply every tick. - Luna

[github-actions]

Dependencies

This PR is now waiting on the following dependency:

• Backend + Improvement: Async Repo Reload Event Handlers #6064