LP1889128 Holds reset repairs and making space

LP1889128 Holds reset repairs and making space

Collapse the Search Form on the holds page so the holds form and data
have more vertical room on the page.  Additionally, to help alleviate
any confusion that may be caused by the collapsed search form (and
because it has come up in other conversations), add a 'Return' button to
the holds page so users have an obvious way back to the previous catalog
page.

Fixes an issue where setting the hold recipient from a patron to the
staff account failed to properly clear the holds form, leaving (e.g.)
the wrong pickup lib in the selector.

Signed-off-by: Bill Erickson <berickxx@gmail.com>
Signed-off-by: Michele Morgan <mmorgan@noblenet.org>