Goodreads Import: Somehow preserve list of failed imports

From gravitas on Hacker News

> Hi! Thanks for fixing that up - I had an 18% failure rate (368/444) and lost the list of failures when I clicked away, so given this I'm now trying to flush/reset my library. I'd recommend (a) logging the import task to a logfile for the user to review failures, and (b) providing editing at scale (list view with checkboxes -> action), as I'm sitting here clicking "remove" hundreds of times to reset book by book. :-/

Start by locating the Goodreads import flow and how failed imports are currently reported or discarded. Confirm whether preserving a reviewable failure log, bulk editing, or both are in scope; done should let users retain and review failed imports after leaving the import experience.

Written by the indexing model from the issue text.