Show "Ctrl-click to open..." or "Click to open..." depending on
security options.

Change-Id: I93024a894967ddd378cc436efffb22302f6034d7
Reviewed-on: https://gerrit.libreoffice.org/52672Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>