In the Course Run collapsible, we show a link to the live or preview page with link text "View Live Page". Before the run is published this link points to a preview page (currently still being served by Drupal), so let's change the link text to "View Preview Page".
Once single course URL is released, I think this still makes sense even if we point users to the same live page representing prior runs. The main point is to avoid confusing course teams about the status of the new (unpublished) run.
When a run's status is anything other than Published, change the Course About link text to "View Preview Page"