History Stages

Full Changelog: https://github.com/Flix100000/History-Stages/compare/5.3.1-1.20.1...5.4.0-1.20.1

New

• Added Tier II, III, and IV variants for the Research Pedestal (Tier 3/4 are 2-wide multiblocks).
• Added Research Boosters that can be placed under a Research Pedestal to increase research speed and reduce costs.
• Added tier gating for stages and boosters, requiring a minimum pedestal tier for certain research.
• Added optional client config to hide locked items and recipes in JEI (hideLockedItemsInJei, hideLockedRecipesInJei).
• Added a toggle button in the editor for the lockedItemMultiStagePolicy (STRICT/LENIENT).
• Added the ability to Ctrl-click an inventory slot in the editor to import its NBT data for criteria creation.
• Added styled toast notifications for editor actions, replacing chat-spam feedback.
• Moved the add button in the editor to a fixed center position and added an empty-state hint.

Fixes

• Fixed a ConcurrentModificationException on the render thread by using ConcurrentHashMap for stage management.
• Removed a stray debug print statement in RecipeManagerMixin.