* Replace filters with an extendibility API to hook into Cart and Checkout blocks
* Update docs
* Add a validate argument
* Add docs comments
* Add tests
* Add validation function
* Prefix validateElementOrString with __experimental
* Update experimental docs
* Typo
* Update comment
* Update JS docs
* Use an object for applyCheckoutFilter args
* Args doesn't need to be an object
* Wrap validation function execution in a try/catch block
* Only accept strings for the totalLabel filter
* Change applyCheckoutFilter signature
* Apply filters for subtotal and sale badge in CartLineItemRow
* Append suffix to prices and SaleBadge if passed in as a prop
* Add subtotal filter to OrderSummaryItem
* Add tests for OrderSummaryItem and ProductPrice
* Rename test for ProductPrice
* Update checkout filter registration plugin name
* Remove obsolete snapshop
* Remove suffix and change to format
This is because we want to make the entire price string editable, not just the part after it.
* Change formatting on SaleBadge to use createInterpolateElement
* Remove tests that are no longer needed.
* Update ProductPrice tests to reflect changes to format prop
* Check that subtotalPriceFormat contains <price/> in OrderSummaryItem
* Fix cart block styling to stop badges overflowing the container
* Add <price/> placeholder in OrderSummaryItem price filter
Co-authored-by: Albert Juhé Lluveras <contact@albertjuhe.com>