LP1717366 Patron summary auto-collapse as org setting

LP1717366 Patron summary auto-collapse as org setting

Treat "circ.auto_hide_patron_summary" as an org setting instead of a
browser client (workstation) setting for consistency with XUL client.

Pre-fetch the circ.auto_hide_patron_summary org setting value so it's
loaded and cached along with the initial patron org settings batch (one
fewer API call).

Move the show/hide function up in the file so it's defined before it's
first referenced (for clarity).

Signed-off-by: Bill Erickson <berickxx@gmail.com>