WooCommerce Group Coupons 2.9.0

* WordPress 6.0 compatible.
* WooCommerce 6.2 compatible.
* Requires at least WordPress 5.6.
* Requires at least WooCommerce 5.8.
* Updated documentation links.
* Replaced uses of deprecated $coupon->is_valid().
* Removed support for use of deprecated cart method cart->coupons_enabled().
* Revised plugin entry code and added plugin action links.
* Revised admin coupon options panel and settings and added extensions.
* Updated the translation template.
* Updated the included translations.

* WordPress 5.8 compatible.
* WooCommerce 5.9 compatible.
* Fixed an incorrect closing tag used in the Spanish translation.
* Improved the appearance of the administrative interfaces for the Groups and Roles coupon settings.
* Moved inline styles for administrative sections into appropriate stylesheets.
* Updated the translation template.
* Supports flexible language translation. Language-generic translations are used if country-specific or formal/informal translations are not available.
* Introduced the WGC_STRICT_LOCALE constant which can be used to disable flexible language translation by defining it as true.
* Includes full translation into generic German.
* Includes full translation into generic Spanish.

* WordPress 5.8 compatible.
* WooCommerce 5.8 compatible.
* Requires at least WooCommerce 5.5.
* Fixed backslashes appearing in group names with quotes shown in the Groups and Auto columns on the Coupons admin screen.
* Fixed a PHP Fatal Error caused by an infinite loop when two or more auto-applied coupons of individual use were applied to the cart.
* Auto-apply coupons of individual use will not be applied if other coupons have already been applied to the cart. This changes the previous behavior where such a coupon would have caused other coupons applied to be removed.
* Added the optional priority setting for coupons that are automatically applied for groups.
* Updated translations.