Fixes
- Changing the favourite icon (heart, star or rating) or a cover mark's "Show on spine shelves" switch now updates spine shelves straight away, instead of after a restart (#605)
- Section and series labels on spine shelves no longer go missing or sit behind the books after turning a page (#606, thanks @tku137)
- Kindle library: books marked as read on the Kindle now show as finished, and title and author corrections made in KOReader are kept (#607, thanks @bezlant)