- Add data-nav-entry-col-from-above so moving down from the season
selector always focuses the first episode instead of the tile
visually closest to the selected season poster; moving back up
still returns to the current season.
- Require recent real mouse movement before treating mouseover as
mouse intent: scroll/re-render under a stationary cursor no longer
activates mouse mode, so sideways season browsing no longer loses
focus to the episode tile under the parked pointer.