Tpac: staff saved searches expand/collapse, use right ou context for setting

Tpac: staff saved searches expand/collapse, use right ou context for setting

1) Display staff saved searches collapsed by default. This makes the facet
display right underneath it more accessible in the case of long search
histories.

2) When checking the org unit setting for the limiting number of
searches to save, use the user's ws_ou as the context, since this is a
staff-client feature.

Signed-off-by: Lebbeous Fogle-Weekley <lebbeous@esilibrary.com>
Signed-off-by: Bill Erickson <berick@esilibrary.com>