CAROUSEL_ALBUM media type

[Konstantin Berendakov]

There seems to be a problem with posts type CAROUSEL_ALBUM.
In this case both thumbnail_url and media_url are empty that causes an error with import.

Here is a possible solution for this problem:
https://stackoverflow.com/questions/58732805/instagram-basic-api-is-it-possible-to-get-the-media-url-from-carousel-album-i