LP1712861 Patron holds wide_holds migration repairs

LP1712861 Patron holds wide_holds migration repairs

* Update order_by clauses to match supported behavior of wide-holds API.
* Fetch canceled holds display org settings in the initial batch to
  reduce API call count.
* Repaired missing if() block {} wrappers.
* Avoid setting limits/filters based on undefined values.
* Avoid use of $scope variables when not needed.
* Remove debug console.log entry.

Signed-off-by: Bill Erickson <berickxx@gmail.com>
Signed-off-by: Chris Sharp <csharp@georgialibraries.org>