Bug 27232: Add missing space between : and </label> in member-alt-contact-style.inc

Bug 27232: Add missing space between : and </label> in member-alt-contact-style.inc

It caused the strings to appear twice in the po file

Test plan:
Apply this patch and regenerate the PO for a given language.
Notice that the string "%s State: " only appears once in the PO file

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>