Replace the tvOS bottom action bar with Settings / Info / Comments /
Next / Close. Settings reuses QualitySelectorView (video, audio,
subtitles, speed); Comments opens TVDetailsPanel directly on the
comments tab; Close stops playback and dismisses.
Debug button is hidden by default and can be re-enabled via a new
tvOS-only Advanced Settings > Developer toggle.
Present the settings sheet as a fullScreenCover with a centered
material card, fix the "Normal" hyphenation, and restyle row selection
throughout the quality selector on tvOS: per-row rounded backgrounds
with focus tint + stroke, vertical spacing instead of dividers, and a
focusable speed-rate menu.
Extends `SettingsKey.isPlatformSpecific` to cover home, tab bar, and
sidebar layout, plus player details panel and video swipe actions, so
iOS devices sync these with other iOS devices (and tvOS with tvOS,
macOS with macOS) instead of overwriting each other via the shared
iCloud key. Adds a one-shot migration that copies legacy unprefixed
values into the new platform-prefixed slots locally and in iCloud,
preserving protected-key timestamps.
