Move checkout state code into thunks and rename CheckoutState conte…

…xt to `CheckoutEvents` (#6455)

* Add checkout data store

* wip on checkout data store

* CheckoutContext now uses the checkout store

* Investigated and removed setting the redirectUrl on the default state

* update extension and address hooks to use checkout data store

* use checkout data store in checkout-processor and use-checkout-button

* trim useCheckoutContext from use-payment-method-interface && use-store-cart-item-quantity

* Remove useCheckoutContext from shipping provider

* Remove isCalculating from state

* Removed useCheckoutContext from lots of places

* Remove useCheckoutContext from checkout-payment-block

* Remove useCheckoutContext in checkout-shipping-methods-block and checkout-shipping-address-block

* add isCart selector and action and update the checkoutstate context

* Fixed redirectUrl bug by using thunks

* Remove dispatchActions from checkout-state

* Change SET_HAS_ERROR action to be neater

* Thomas' feedback

* Tidy up

* Oops, deleted things I shouldn't have

* Typescript

* Fix types

* Fix tests

* Remove isCart

* Update docs and remove unecessary getRedirectUrl() selector

* validate event emitter button

* Added thunks in a separate file

* Call thunks from checkout-state

* Checkout logic tested and working

* Remove dependency injection as much as poss, tidy up and fix some TS errors

* Fix types in thunks.ts

* Fixed some ts errors

* WIP

* Fixed bug

* Shift side effects from checkout-state to checkout-processor

* Revert "Shift side effects from checkout-state to checkout-processor"

This reverts commit 059533d.

* Rename CheckoutState to CheckoutEvents

* Move status check outside the thunk

* remove duplicate EVENTS constant

* remove temp buttons

* Remove console logs

* Augment @wordpress/data package with our new store types

* Add correct type for CheckoutAction

* Remove createErrorNotice arg from runCheckoutAfterProcessingWithErrorObservers

* Remove createErrorNotice from emit event types

* Use type keyword when importing types

* Add correct types for dispatch and select in thunks

* Update wordpress/data types

* Replace store creation with new preferred method

* Set correct action type on reducer

* Remove unnecessary async from thunk

* add CHECKOUT_ prefix to checkout events again

* export EVENTS with eveything else in checkout0-events/event-emit

* Remove duplicate SelectFromMap and TailParameters

* Updated type for paymentStatus

* TODO remove wp/data experimental thunks

* Remove `setCustomerId` from events and `processCheckoutResponseHeaders` (#6586)

* Prevent passing dispatch, instead get actions direct from store

* Get setCustomerId from the store instead of passing it to processCheckoutResponseHeaders

* Revert "Prevent passing dispatch, instead get actions direct from store"

This reverts commit 4479a2e.

* Auto stash before revert of "Prevent passing dispatch, instead get actions direct from store"

* Remove duplicate dispatch

* Fix unit tests

Co-authored-by: Thomas Roberts <[email protected]>
Co-authored-by: Thomas Roberts <[email protected]>