`fillAdIds` can also be rewritten as ``` ...

# codereview

[kristofdho]

fillAdIds can also be rewritten as

fun fillAdIds(index: Int, map: LinkedHashMap<String, Image>): List<Image> {
       			return map.values.mapNotNull { image ->
                    tempAdIds[index]?.let{image.copy(adId = it)}
                }
            }