LP1805860: Display long patron names without obscuring input fields

LP1805860: Display long patron names without obscuring input fields

Long patron names can obscure the input fields and menu items on patron
action screens. The only workaround is to reduce the font size using the
browser controls until the input fields and menu items are visible.

While the fixed position saves space at the top of the screen for
typical cases, it can be hard for staff to remember the font-reduction
workaround when they hit a long patron name.

Removing the fixed position CSS also better supports the display of
regular patron names on browsers that are not wide enough to display the
top menu (Search/Circulation/Cataloging/.../Workstation name/Locale) all
on a single line.

Signed-off-by: Dan Scott <dan@coffeecode.net>