Summary:
The current implementation of the prelive composer is setting the RN override preference to nil when live shopping ends. However, if the user had a previously set appearance override, this would clear it out.
To resolve this, I cache the user's override preference before we override it, and restore it when live shopping ends.
Additionally, I'm adding a missing callback to restore the override pref when live shopping is dismissed, but not cancelled.
Changelog:
[ReactiveNative][Appearance] - Add function to retrieve overridden RN appearance
Differential Revision: D32564739
fbshipit-source-id: d0b4e06d2bbadad68f172d951609cba3e4587e5d