Use primitive Supplier and improve obsolete mod list handling

[WaitingIdly]

changes in this PR:

• use BooleanSupplier instead of Supplier<Boolean> for the mixin and obsolete mods maps.
• centralize code determining the behavior of obsolete mods.
• ensure the obsolete mods list is not run twice when starting a pack. minor thing, but it was weird.

[what-the-diff]

PR Summary

• Upgraded obsolete mods message condition
  The condition to display messages about outdated modules has been improved in UniversalTweaks.java by using a dedicated method (hasObsoleteModsMessage()) instead of manually inspecting a list.

• Enhanced control over obsolete mods visibility
  The file UTConfigGeneral.java now features improved handling of visibility for outdated module notifications, introducing a method to reset visibility.

• Refactored configuration in UTLoadingPlugin.java
  The handling of server-side, common, and client-side configuration settings has been improved by using BooleanSupplier for better clarity and ease of use.

• Updated method for mixin configuration
  The shouldMixinConfigQueue method in UTLoadingPlugin.java now aligns with the changes in configuration types, streamlining the process with updated method calls.

• Updated mixin configuration handling in UTMixinLoader.java
  Updates were carried out in UTMixinLoader.java to bring its handling of mixin configurations in line with the new BooleanSupplier approach.

• Improved GUI events in UTCompatScreenHandler.java
  The UTCompatScreenHandler.java file has been updated to benefit from the new hasObsoleteModsMessage() method, enhancing how GUI events are managed.

• Added obsolete mods handling and visibility methods in UTObsoleteModsHandler.java
  This file now includes new methods for controlling visibility of outdated modules and preparing a list of such modules for display.

• Encapsulated logic for generating obsolete mods list
  The logic for preparing the list of outdated modules has been enclosed in a new method getObsoleteModsList() for improved clarity and maintenance.