1. Optimizing work with XSkull
2. New parameter "defaultRuneAmount: 1" in case the number of runes to give is not specified
3. Added a new message: runeItemCreateFailed: "{prefix}Failed to create rune item"
1. Improvement of working with attributes
2. Improvement of working with basehead (integrated XSkull into the plugin to support all versions without exception)
3. Optimized and improved code quality