Add Laravel 9 support

[0.4.0] - 2022-05-08

Added

• Laravel 9 support

0.3.0

Fixed

• Fix position query scoping for relations

0.2.0

Added

• Documentation
• OrderByPosition global scope
• Support for models delete
• swap method
• Add PHP 8 support

Changed

• Rename arrangeByIds into arrangeByKeys
• Extract arrangeByKeys method into query b

Initial release

Added

• Base positioning features