Support split-screen behavior

[falk-stefan]

Feature Request

Add or support split-screen behavior.

Why it is needed

I was actually looking for a component which would allow me to have a divider which is splitting the screen in two. The react-native-bottom-sheet has all the required behavior except for the fact that the backdrop content cannot be configured to grow and shrink with the remaining content.

Possible implementation

Not sure how to implement this in the current state.

Code sample

<BottomSheet 
    backdropComponent={() => <View className="bg-red-700 h-full w-full"></View>}
    splitScreen>
    <View className="bg-blue-700 h-full w-full"></View>
</BottomSheet>