The loading and error states on the detail page need two fixes: - [ ] Announce loading and results to screen readers with aria-live and aria-busy, like the list does. - [ ] Style the "Try again" button like the list's button (.sighting-results__button), with a visible focus outline. ## Done when A screen reader announces loading and then the loaded sighting, with nothing announced twice The button matches the list's button and has a visible focus style