- Remove redundant chapter sorting logic when fetching next chapter(s)
- Remove redundant download queue checks (it'll handle already queued or downloaded items)
- Trigger download ahead when read >= 25% of chapter rather than 20%
- Rely on download cache when checking if next chapter is downloaded to avoid jank (fixes#8328)
(cherry picked from commit fc184f1cfa929328c41b0ec374503afe204d6c15)
# Conflicts:
# app/src/main/java/eu/kanade/tachiyomi/data/library/LibraryUpdateService.kt
# app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderPresenter.kt
b4ede754b9