app_full.kt

fun FitnestApp() {
    val snackbarDelegate: SnackbarDelegate by rememberInstance()

    val scaffoldState = rememberScaffoldState()

    snackbarDelegate.apply {
        snackbarHostState = scaffoldState.snackbarHostState
        coroutineScope = rememberCoroutineScope()
    }

    FitnestTheme {
        Scaffold(
            scaffoldState = scaffoldState,
            snackbarHost = {
                SnackbarHost(hostState = it) {
                    val backgroundColor = snackbarDelegate.snackbarBackgroundColor
                    Snackbar(snackbarData = it, backgroundColor = backgroundColor)
                }
            }
        )
    }
}