* Tweak - WordPress 6.7 and WooCommerce 9.3 compatibility.
* Tweak - WordPress 6.6 and WooCommerce 9.0 Compatibility.
* Fix - Corrected deprecated null parameter to comply with updated PHP standards.
Fix - Removed WC_Boxpack class_exists check as it is no longer needed.
Fix - Apply WordPress coding standards.
Add - Prefix Box-Packer namespacing.
Tweak - Remove TGM Plugin Activation dependency.
Fix - Shipping debug info not showing when using WC cart and checkout blocks.
* Tweak - Remove discontinued Regional Rate Boxes (A1, A2, B1, B2).
Fix - Fatal error on PHP 8 when aborting unpacked item.