Report a linked copy whose bytes differ from the library file as positionIncompatible instead of
unmatched, so the plugin keeps the match, skips highlights without a failure and still syncs progress.
Treat a position-less place within a page as the same place and jump to the nearest page.
Suggest library books with the same title and authors for books to review, with bulk linking.
See docs/KOREADER_HASH_MATCHING.md.
Closes#1872Closes#1919
neon