Replace Screenshots for Publish All / Review Missing Items Workflow

[dartajax]

This depends on ilios/ilios#7007 getting completed. When MeSH no longer shows up on that screen, the user guide will need to be updated accordingly.

[dartajax]

I thought I was going to close this one up but there is more work to do in this area - show sessions that are completely ready to publish - screen shots - so still open