Related to https://github.com/webrecorder/browsertrix/issues/1477, minor
UI tweaks as fast follow:
- Makes archived item status icons all the same size
- Increases hover hit target of archived item cells
- Reduces top padding of QA review page
- Adds "Back" button to QA review page to match all other pages
- Updates percentage formatting of tab labels to match pages
7ac06608b2