Port InvView to NeoForge 1.21.1 with complete refactoring and new features

• Fully ported InvView from Forge to NeoForge 1.21.1, ensuring compatibility with the latest API.
• Refactored codebase for modularity and extensibility:
  • Introduced InventoryProvider API for dynamic inventory handling (PlayerInventoryProvider, EnderChestProvider).
  • Replaced hardcoded commands with InventoryProviderRegistry for provider-based command registration.
  • Created AbstractInventoryScreenHandler to centralize common inventory container logic.
• Added InventoryLockManager with InventoryType enum (PLAYER_INVENTORY, ENDER_CHEST, CURIOS, CURIOS_COSMETIC) to prevent concurrent modifications.
• Implemented Curios API integration:
  • Added CuriosInventoryProvider and CuriosCosmeticInventoryProvider for functional and cosmetic Curios slots.
  • Updated PlayerCuriosInventoryScreenHandler and PlayerCuriosCosmeticInventoryScreenHandler to handle inventory changes with proper synchronization.
  • Registered Curios providers conditionally using ModList.get().isLoaded("curios").
• Integrated LuckPerms support for fine-grained permissions:
  • Created PermissionHandler for conditional permission checks (inv_view.inv, inv_view.echest, inv_view.curios, inv_view.curios_cosmetic).
  • Fallback to Minecraft operator level 2) when LuckPerms is not installed.
• Enhanced offline player support:
  • Improved InvViewCommands to load offline player data using MinecraftServer.getPlayerList().getPlayerForLogin().
  • Ensured data persistence with InvViewNeoforge.savePlayerData() for all inventory modifications.
• Added translation support for UI and error messages (e.g., inv_view_neoforge.inventory_in_use.error, inv_view_neoforge.curios.inventory).
• Optimized code for performance and maintainability, removing deprecated Forge methods.