[oleksandrzavarzin-callstack]

Closes #397.

PR Description

On Android, the tab bar kept its old colors after Appearance.setColorScheme(). Only a system dark mode change or a new mount of the tab bar changed the colors.

React Native implements setColorScheme with AppCompatDelegate.setDefaultNightMode. AppCompat updates the Activity configuration, but Android does not call onConfigurationChanged on the views. The code from #305 that creates the bar again runs only in that view callback, so it never ran.

This PR adds a second trigger for the same code. While the view is attached, it listens to the Activity with addOnConfigurationChangedListener from androidx. A change can also happen while the view is detached. For that case, the view compares the configuration each time it attaches.

A tab bar with tabBarStyle.backgroundColor or barTintColor keeps the current behavior: the library does not create it again.

How to test?

1. Render the tabs without a custom bar color.
2. Call Appearance.setColorScheme('dark'), for example from a button.
3. Make sure that the tab bar turns dark.
4. Call Appearance.setColorScheme('light').
5. Make sure that the tab bar turns light, and that a tab press still works.

Tested on Android 8.1 (API 27), Android 13 (API 33), and the Android 17 beta (API 37). The system dark mode path still works on all 3.

Videos

	Light to dark	Dark to light
Before	397-android-37-before-light-to-dark.mp4	397-android-37-before-dark-to-light.mp4
After	397-android-37-after-light-to-dark.mp4	397-android-37-after-dark-to-light.mp4