Add example of places list customization

[VitaminPSG]

In this example we use DashNavigationFragment to setPlacesPreview via

class PlacesListUiState(
    val title: DataState<String>,
    val items: DataState<List<DashSearchResult>>,
    val itemSelected: (Int) -> Unit,

    val closeHandler: BackCloseButtonHandler?,
    val backHandler: BackCloseButtonHandler?,
)