fdo#80617 Use complete string to allow translation for page number info

Change-Id: I8cc899f70ee4dcd65495b8ccc153a8fc3a2cc413
Reviewed-on: https://gerrit.libreoffice.org/11157
Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>
Reviewed-by: Thomas Arnhold <thomas@arnhold.org>
Tested-by: Thomas Arnhold <thomas@arnhold.org>