* Create ShippingMethodsControl component
* Hook up shipping methods to API
* Add support for several packages
* Add tests to useShippingRates
* Fix shipping_rates property name
* Only show the products list if there are several packages
* Use <FormattedMonetaryAmount> to display shipping rate prices
* Make 'country' optional in CartShippingRates
* Make CartShippingRate API return currency info
* Minor improvements
* Fix shipping fields hidden in editor
* Fix missing currency in Checkout shipping rates selector
* Add links to issues in @todo comments
* Improve ShippingRatesControl useEffect
* Remove unnecessary tab
* Remove unnecessary id in RadioControl
* API: Add error when country is invalid
* Debounce shipping rates API requests
* 'Country key' -> 'Country code'
* Don't display radio input when there is only one option
* Add message when there are no results
* Minor enhacements
* Remove unnecessary Fragment
* Simplify RadioControlOption export
* Refactor 'renderOptions' and split it into several components
* Prevent Card sidebar from taking too much width
* Move country request check outside of the loop
* Fix failing test