The `shift-list-item` component for displaying ShapeShift transactions
has been removed, along with three other components that were used
solely by that component (`copyButton`, `eth-balance`, and
`fiat-value`).
This component hasn't been used in some time, as ShapeShift
transactions no longer exist to display. The controller that ShapeShift
transactions originated from was removed in #8118, and it became
impossible to create new ShapeShift transactions from within MetaMask
in #6746
* Redesign approve screen
* Add translations to approve screen components
* Show account in header of approve screen
* Use state prop bool for unlimited vs custom check in edit-approval-permission
* Set option to custom on input change in edit-approval-permission
* Allow setting of approval amount to unlimited in edit-approval-permission
* Fix height of confirm-approval popup
* Ensure decimals prop passted to confirm-approve.component is correct type
* Ensure first param passed to calcTokenValue in confirm-approve.util is the correct type
* Fix e2e test of permission editing
* Remove unused code from edit-approval-permission.container
