CAT-199 Workstation admin default search options for browse

CAT-199 Workstation admin default search options for browse

- Set eg.search.browse_sort_default on selection of option
in dropdown.
- Append default browse sort to url on browse search.

Signed-off-by: Kyle Huckins <khuckins@catalyte.io>
Signed-off-by: Katlyn Beck <kbeck@catalyte.io>
 Changes to be committed:
	modified:   Open-ILS/src/templates/staff/admin/workstation/t_splash.tt2
	modified:   Open-ILS/web/js/ui/default/staff/admin/workstation/app.js
	modified:   Open-ILS/web/js/ui/default/staff/cat/catalog/app.js