WooCommerce Pre-Orders 2.2.6

* Dev – Bump WooCommerce “tested up to” version 7.6.
* Dev – Bump WordPress minimum supported version from 5.6 to 5.8.
* Dev – Bump WordPress “tested up to” version 6.2.
* Fix – Prevent countdowns of trashed products from showing up.
* Update – Improve escaping of the URLs for the different Pre-Order statuses.
* Update – Replace the use of “extract” for retrieving the attributes of the countdown shortcode.

* Fix - Layout attribute in the countdown timer.
* Fix - Improve the "Shop loop product message" description.

* Add - Order types filter in the order list when HPOS is enabled.
* Add - Implement support for automatic translation files delivery.
* Fix - Improve failed pre-order status transition logic.
* Fix - Countdown timer output issue.
* Dev - Bump PHP minimum supported version from 7.0 to 7.2.
* Dev - Bump WooCommerce minimum supported version from 6.0 to 6.8.
* Dev - Bump WooCommerce "tested up to" version 7.4.
* Dev - Export _wc_pre_orders_availability_datetime metadata in human readable date format (mysql format).