The Angular staff catalog now displays the search_label value for all of
the coded-value-map filters (search format, item type, etc.) when
available. It falls back to the 'value' field when no search_label exists.
If a value is not opac_visible, the text "(Hidden)" is appended to the
label.
Signed-off-by: Bill Erickson <berickxx@gmail.com> Signed-off-by: Elaine Hardy <ehardy@georgialibraries.org>