Update an item's Album Art URI to be an absolute URI.

        Args:
            item: The item to update the URI for

def _update_album_art_to_full_uri(self, item):
        """Update an item's Album Art URI to be an absolute URI.

        Args:
            item: The item to update the URI for
        """
        if getattr(item, 'album_art_uri', False):
            item.album_art_uri = self.build_album_art_full_uri(
                item.album_art_uri)