This PR implements new record sorts CRUD as already done on record
filters, which is based on record sorts state instead of combined view
sorts.
It implements a new useSaveRecordSortsToViewSorts with its underlying
utils, to compute diff between two view sorts array.
The associated unit tests have also been written.
This PR also fixes the bug where the view bar disappeared when deleting
the already saved record sort of a view.
970aa4c5a1