Update v1.3.1 "Copper Update"

Added:

• Oxidation Mechanics: Copper lanterns now feature the full copper oxidation mechanic just like vanilla Minecraft (Normal, Exposed, Weathered, and Oxidized).

Fixed & Optimized:

• Codebase Cleanup.
• Rendering Optimization: Migrated transparency logic to JSON block models (cutout) for better performance and Resource Pack compatibility.
• Loot Tables: Fixed an issue where lanterns wouldn't drop their items when mined in Survival mode.