LP1889133 Follow Up

LP1889133 Follow Up

This partially reverts the previous LP1889133 commit which changed the
eg-grid-column name in order to make it sortable. By changing the name,
it would break prior locally saved grid settings. So, this keeps the
column label change, but reverts the name change and instead makes the
column non-sortable.

The Current Item and Requested Item columns on this grid also threw ugly
errors when trying to sort by them, so I also made them non-sortable.

Release-note: Make the Hold Status, Current Item, and Requested Item Columns non-sortable on Angular holds grids to avoid errors.

Signed-off-by: Terran McCanna <tmccanna@georgialibraries.org>
Signed-off-by: Galen Charlton <gmc@equinoxOLI.org>