* IMPORTANT: PHP 7.2 is required.
* Update: Tested up to WooCommerce 7.3.0.
* New: Separate out "X in stock" remaining text and display in child item details, updated single-product/mnm/mnm-product-quantity.php template.
* Fix: Correctly parse hierarchical child category IDs. Closes #470.
* Fix: Add static className to item data for better blocks compat. Closes #468.
* Fix: Missing export data for layout override and weight calculation.
* Fix: Flatsome compatibility for equal-height product images.
* Fix: Disable per-product overrides when viewing customizer.
* Fix: Default value of customizer settings for show thumbnails/short-description.
* Fix: Fixed a fatal error that was triggered when using PHP v8 and using Cart/Checkout Blocks.
* Fix: Rename tabular layout 'product-name' header cell to 'product-details'.
* Tweak: Audit CSS styles to remove as much explicit padding/margin as possible.
* Tweak: Add a close icon to font family for use by mini-extensions.
* Tweak: Add woocommerce_product_loop_title_classes filter for parity with core.
* Tweak: Adjust front-end styles for mobile first.
* Tweak: Center align quantity inputs in Storefront theme.
* Tweak: container.child_items in script is now an ARRAY. Please check if doing very advanced custom Javascript modifications.
* Dev: Rename WC_MNM_Container.validation_context property to validation_mode.
* Dev: Re-key wc_mnm_child_item_data_attributes to not use 'data-' prefix. It will be auto-added.
* Dev: Introduce wc_mnm_center_align_quantity filter.
