* add selecting rate resolution state to the cart store
* expose whether rate is being selected on useSelectShippingRate
* Cleanup and refactor ShippingDataProvider
- remove un-needed component and move shipping rates into context provider
- remove error handling (currently the ui/ux for the checkout should result in no errors and any api errors are non-recoverable).
- Add logic for shipping rate selection into context provider and add event emitters for it.
- increment/decrement checkout calculation counts when shipping rates are being selected.
* dispatch checkout error if there is an error
* disable place order button if checkout is calculating or has error
* update doc block
* fix convention for js comment blocks
* Add Checkout form validation
* Add back validation when filling the address without having set a country
* Split TextInput and Select so they can be used with or without validation
* Cleanup
* Only display the missing country error if city, state or postcode are entered
* Fix CSS specificity conflict
* Remove unnecessary semicolon
* Rename areThereValidationErrors to hasValidationErrors
* Add back icon
* Add cart URL constant
* Add button components
* Implement button components into checkout
* Update checkout styles to match mockup incl updates to margins and padding
* Add options to control return to cart link
* Use checkout context
* Update snapshot
* Update context
* href
* Color/arrow styling
* Implement select instead of open URL field
* Add notice and updated settings control
* Show notice conditonally
* Store permalinks to avoid extra API requests, and get pages via API
* Update snapshots
* Fix double layout conflict
* Switch back to ID and add permalink via block setting
* snaps
* Fix snapshot; add default shape for pages
* Feedback
* Better undefined handling
* Update assets/js/blocks/cart-checkout/checkout/block.js
Co-Authored-By: Darren Ethier <darren@roughsmootheng.in>
Co-authored-by: Darren Ethier <darren@roughsmootheng.in>