Major Description
I've noticed that there are two functions to sort arrays sort_array and array_sort.
sort_array is from 1.5.0 and it has the possibility of ordering both ascending and descending
array_sort is from 2.4.0 and it only has the possibility of ordering in ascending.
Basically I just added the possibility of ordering either ascending or descending using array_sort.
I think it would be good to have unified behaviours.
This is the link to the [PR|https://github.com/apache/spark/pull/25728]