- VideoBubble: stopPropagation on the inline <video> element so
clicks on the native controls (play/pause/seek) don't bubble up
to the outer tile, which previously promoted any control click
into a fullscreen overlay.
- VideoPlayer: replace overflow:hidden body lock with the iOS-safe
position-fixed + scroll-restore pattern. Closing the fullscreen
player now returns the page to the exact scroll offset it had,
instead of snapping back to the top on iOS Safari.
