When we complete an edit in one of the edit modals, we see a green 'success' pop-up, which stays on the screen for a few seconds.
If the user edits another statement / property / qualifier / reference while the pop-up is still showing, the 'cancel' / 'publish' buttons are covered by the pop-up. This is a confusing user experience, and also significantly slows down the cypress tests (as the tests wait for buttons to be visible before proceeding).
Cypress could be made to click away / dismiss the message boxes, but that wouldn't improve the situation for users. I propose that we always display messages floating further up the page than the footer, especially the footer of the modal that contains the action buttons.
Acceptance Criteria
- The StatusMessage component and its users are updated so that status messages do not obscure important user interface elements (e.g. 'cancel' and 'publish').

