Woocommerce Buy One Get One Free 5.4.2

* Fixed: Compatibility issue with AeroCheckout break checkout styles.
* Tweak: Improve compatibility with sites where woocommerce_before_add_to_cart_button hook is not available.

* Fixed: Product Add-ons issue: duplicate add-ons in the free product for the rule "Buy a product and get the same product for free."
* Fixed: Add the Minimum spend field to the wmpl config file.
* Fixed: RTL support for the "arrow" shown in the subtotal of items that have a discount

* Added: New type of rule "Buy 2 (or more) products and get the cheapest one for free."
* Added: New settings option for display the [wc_choose_your_gift] shortcode after the cart.
* Added: [wc_choose_your_gift] shortcode supports the "AJAX add to cart buttons".
* Added: Minimum spend - The minimum subtotal needed to use the rule.
* Added: Improvements on the compatibility with Product Bundles to allow users to choose which items the rule applies to.
* Added: Compatible with WooCommerce 4.7+.
* Tweak: Improve the compatibility with themes that use AJAX to add the product to the cart on the "single product page."
* Fixed: Minor bugs.