3.0.0

• updated to 1.21.11
• migrated to Mojang Mappings

Additions

• added server config option to disable the hotkey for opening the backpack screen

Changes

• replaced game rules with server config options

Fixes

• fixed potential issues regarding config initialization and "Inventory Size Attributes" integration

Technical

• replaced synced data with a data attachment, following the best practice for custom entity data
• removed deprecated API method