Pull to refresh is unified across every screen with a smoother, more responsive
indicator, and no longer fires when you swipe a poster row sideways.

Detail screens fade their title into the app bar as you scroll, the bottom bar
tucks away while scrolling down, and the back button from a secondary tab returns
to the dashboard.

Seerr posters, backdrops and cast photos now load from your own Seerr server
rather than from TMDB directly.
