LP#1576435: Force "Include inactive patrons?" on patron reg duplicate search

LP#1576435: Force "Include inactive patrons?" on patron reg duplicate search

In the XUL client, duplicate patron checking in the patron registration
interface now includes inactive patrons (see LP#1217052).  However, if
you click on the link "Found X patron(s) with the same name," the
resulting patron search does not always include inactive patrons by
default (instead, the value of the "Include inactive patrons?" checkbox
is cached from your last patron search, as usual).

To prevent user confusion in this scenario, this commit forces the
linked patron search in the XUL client to always include inactive
patrons.

Signed-off-by: Jeff Davis <jdavis@sitka.bclibraries.ca>