* Show backorder notice in the Cart block
* Don't render variation <div> if empty
* Create ProductBackorderNotification component
* Add product backorder notification to the checkout block
* Fix classname and comment
* Rename notification->badge and don't show low stock badge if backorder is shown
* Use ternary to dispaly backorder/low stock badge
* Update base/components classnames
* Fix class name conflict
* Fix some class names mismatch
* Fix review loading placeholder styles
* Fix docs format
* Update old class name
* Fix price slider regression
* Fix load more button component missing legacy class
* Fix wrong loading mask styles classname
* Remove 'checkout' from 'wc-block-components-checkout-payment-methods__save-card-info' classname
* Make it explicit legacy classes will be removed in the next major version
* Make product variation data styles belong to product metadata
* Improve docs sentence
* Order summary: Add spacing between product name and price name
* Remove border from shipping options in the side bar
* Add a hasBorder prop to Panel
* Checkout Order summary: remove margin product description
* Fix padding when there are multiple packages and remove old code
* Simplify selector
* Add margin botton to no shipping options notice
* Make sure Checkout titles are aligned when there are no express payment methods
* Update step heading margins according to new designs
* Move order summary styles to component style.scss
* Fix wrong class name in Order summary
* Move express payment methods a little bit higher
* Fix shipping options panel misaligned in the Cart sidebar
* Add right padding to panel button so text doesn't overlap the arrow
* Fix wrong class name in Order summary (II)
* Update item count badge styles
* Make sure item count badge doesn't break in multiple lines
* Make item count badge have white background
* Add docs
* Move order summary CSS properties outside of the sidebar class to reduce specificity
* Move Order summary to its own component
Albert Juhé Lluveras