Bug 32768: Autocomplete suggestions container should always be on top of other UI...

Bug 32768: Autocomplete suggestions container should always be on top of other UI elements

This patch moves the z-index setting of .ui-autocomplete from
addbiblio.css to staff-global.scss for wider use

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit 4fe0e47da22aac747014a0743d2edbb5af4a1f4a)
Signed-off-by: Matt Blenkinsop <matt.blenkinsop@ptfs-europe.com>