@Composable
internal fun BookmarkList(
        padding: Modifier,
        loadBookmarks: State<List<Bookmark>>
) {
    with(loadBookmarks) {
        ScrollableColumn(modifier = padding) {
            LazyColumnItems(value) { bookmark ->
                BookmarkCard(bookmark = bookmark) { editRequest ->
                    
                }
            }
        }
    }
}

@Composable
private fun AppContent(
    navigationViewModel: NavigationViewModel,
    bookmarkViewModel: BookmarkViewModel
) {
    Surface(color = MaterialTheme.colors.background) {
        when (val screen = navigationViewModel.currentScreen) {
            Screen.Home -> {
                Crossfade(screen) {
                    HomeScreen(
                            navigateTo = navigationViewModel::navigateTo,
                            loadBookmarks = bookmarkViewModel.loadAll()
                    )
                }
            }
        }
    }
}