* Create ShippingCalculatorAddress block
* Make 'change address' button to open/close the address form
* Create ShippingCalculator component
* Use CountryInput and CountyInput instead of TextInputs
* Fix city value not being set
* Fix shipping rate not appearing when there was only one option
* Unify postalCode and postCode to postcode
* Rename 'county' to 'state'
* Add reset styles for popular themes
* Increase cart-frontend.js max size
Albert Juhé Lluveras