* Fix - can't add accommodation booking to cart from wishlist. * Tweak - WC 5.3 compatibility. * Tweak - WP 5.7 compatibility.
* Fix - Use proper hook function closes #3071.
* Fix - Update javascript to directly support jQuery 3 without jQuery Migrate. * Fix - Updated path to the single-product/add-to-cart/booking.php template file. * Tweak - WP 5.7 compatibility.