[react-native] Update StatusBarPropsAndroid & StatusBarPropsIOS props description (#50016)
[react-native] Update StatusBarPropsAndroid & StatusBarPropsIOS props description (#50016)

- add `@platform` annotations where missing, see:
	- https://github.com/facebook/react-native/blob/f96478778cc00da8c11da17f9591dbdf928e7437/Libraries/Components/StatusBar/StatusBar.js#L77
	- https://github.com/facebook/react-native/blob/f96478778cc00da8c11da17f9591dbdf928e7437/Libraries/Components/StatusBar/StatusBar.js#L61

- `barStyle` prop is no longer iOS specific, see
	- https://github.com/facebook/react-native/blob/f96478778cc00da8c11da17f9591dbdf928e7437/Libraries/Components/StatusBar/StatusBar.js#L26
	- https://github.com/facebook/react-native/blob/f96478778cc00da8c11da17f9591dbdf928e7437/Libraries/Components/StatusBar/StatusBar.js#L108
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