Transpile Compose `@Preview`s from SwiftUI `#Preview`

[dfabulich]

It's convenient to see @Previews in Android Studio. As it stands, I have to write a lot of complicated boilerplate for this:

#if SKIP
@Preview(showBackground = true)
@Composable
fun WelcomeViewPreview() {
    ProcessInfo.launch(LocalContext.current)
    Surface(
        modifier = Modifier.fillMaxSize(),
        color = MaterialTheme.colorScheme.background
    ) {
        WelcomeView(welcomeName = Binding.constant("Skipper"))
            .Compose(context = ComposeContext())
    }
}
#else
#Preview {
    WelcomeView(welcomeName: Binding.constant("Skipper"))
}
#endif

[dfabulich]

Aprops #439