WooCommerce Smart Coupons 8.22.0

* Fix: Fatal Error: Uncaught Error: Call to undefined function post_exists()
* Update: POT file

* New: WooCommerce 5.9.0 compatible
* New: Tested upto WordPress 5.8.2
* Fix: Displaying error 'Uncaught Exception: Invalid coupon' under the order admin page > Generated coupons meta box, when a coupon that is auto-generated got deleted
* Fix: Support for wildcard email under Allowed emails during 'Bulk generate' & 'Import coupons'
* Update: POT file

* Fix: Incorrect discount calculation when cart is having Product Bundles & max discount is set in the coupon
* Update: POT file