* Show all payment methods when it's an admin and let the error boundary handle errors
* Use StoreNoticesContainer in Payment method error boundary so notices have styling
* Filter out saved payment methods for admin users if they don't accept payments
* Simplify update options logic
* For admins, only show payment methods that errored but canPay was not false
* Simplify how new payment method option is appended
* Wrap canMakePayment in a try catch block to handle payment methods that throw an error
* Add an id to payment method error boundary errors
* Add an error boundary to express payment methods
* Hardcode failing content and savePaymentInfo to false if the payment method failed
* Add some new comments
* Add a notice instead of registering the payment method if it fails and user is admin
* Throw error early if stripe failed to load
* Split express and standard payment method error notices
* Don't add payment methods in the editor and instead add a notice
* Fix error id
* Use noticeContext constant
* Add missing JSdoc param
* Remove unnecessary removeNotice
* Shown express payment methods in Cart block
* Fixes
* Create usePositionRelativeToViewport hook
* Typo
* Style fixes
* Remove footer push div
* Styling fixes
* Improve code clarity
* Split ExpressCheckoutFormControl into two components
* Rename visibilityObserver to referenceElement
* Replace 'useEffect' with 'useLayoutEffect'
* Add tests for usePositionRelativeToViewport
* Self-closing div
* Add explanatory comment
* Create a shim for IntersectionObserver
* Update express payment components class names
* Add todo comment to remove IntersectionObserver shim when we drop IE11 support
Albert Juhé Lluveras