- Match the loading skeleton to TVSearchSection's scaled layout (poster
width, item gap, edge padding, heading, poster radius) so placeholders
line up with the real content.
- Move the native search field up ~50px (drop marginTop).
- Remove the downward focus guide that re-captured upward focus, so
pressing up from the native search now reaches the tab bar.
Add a local `tv-search` Expo module that hosts SwiftUI's `.searchable`
in a UIHostingController (adapted from expo-tvos-search, minus its native
results grid). It emits typed text to React Native so the existing search
pipeline and custom TV results grid are reused. Handles the RN-tvOS remote
gesture release needed for keyboard input on device.
Wire it into TVSearchPage as a sticky header above the scrollable results,
with a TVFocusGuideView bridge so focus can move from the tab bar into the
native search field.
