Issue 1: Chapter switch shows a jarring loading state
When moving to a new chapter, the screen briefly clears to a solid background color with a loading spinner, and then the new chapter's text just snaps into place once it's ready. This full-color flash + abrupt snap is jarring and breaks reading flow.
Suggestion: Pre-load the next (and previous) chapter's content in the background before the user reaches it, so there's no visible loading state - the transition should feel instant and continuous, with no flash to a blank/solid background.
Issue 2: No animation when turning pages
Right now, swapping between pages just snaps directly to the next page with no transition at all.
Suggestion: Add a sliding transition between pages - the current page should slide out as the next one slides in. Not looking for a fade or a realistic paper-curl effect, a slide is just fine.