* Reset lastPageRead when chapter is marked unread
* Remove a bit of repetition in SetReadStatus
(cherry picked from commit 5159eabc5dfd77dd7e4a480c1982bd1d2e5fbb92)
# Conflicts:
# app/src/main/java/eu/kanade/tachiyomi/ui/library/LibraryPresenter.kt
# app/src/main/java/eu/kanade/tachiyomi/ui/manga/MangaPresenter.kt