* Separate button spinner to separate component for reuse
* Use block checkout spinner in loading mask
* Block pointer events within loading mask
* Give the useRef within useShallowEqual a default value
This prevents the potential of having an undefined value returned.
* State setter and dispatch are stable
These do not need to be used as dependencies.
* Prevent re-renders of children when using loading mask.
This prevents children being rerendered and losing state. Loading styles are applied instead using a classname, but leaving the divs in place.
* Use memoization to to prevent excessive express payment rerenders
* Wrap express payment in loading mask
* Show loading state after submission
* remove eslint exclusion
* Move spinner to base components so it's available outside of the checkout package
* Avoid extra is-loading classname
* Update snaps/fix tests
* Remove memorization of payment method content due to stale data
* Express payment error handling
* Split up payment method context to make it more manageable
* Add blocking logic to cart
* Update snap
* Restore useRef
* Fix missing function removed by accident
* Fix setActivePaymentMethod and started status (so saved methods still allow express to be initialized)
* Loading Mask Todo
* Remove boolean shallow equals
* Missing dep
* Memoize typo
* Document changes in useStoreEvents
* Replace expressPaymentMethodActive
* setExpressPaymentError deprecation
* Only change status if an error is passed
* Track disabled state via useCheckoutSubmit
* useCallback on error message functions
* Fix mocks in test
Mike Jolley