ChatProvider::getSortedBlankItems

private function getSortedBlankItems(): array
{
	$datesUpdate = $this->getChatIdsWithDates();
	$ids = array_keys($datesUpdate);
	$items = $this->getBlankItems($ids, $datesUpdate);
	usort($items, function(Item $a, Item $b) {
		return $a->getSort() <=> $b->getSort();
	});

	return $items;
}