Resolves: tdf#125935 open menu at bottom of page upwards

to avoid the glitch seen under Ubuntu's 18.04 with gtk3-3.22.30 that
it won't popdown in clicking the button without focusing in and out
of the menu first

Change-Id: Ic78647562f4a3a345eb714aa70f9bcfe30ea8c41
Reviewed-on: https://gerrit.libreoffice.org/74493
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/sc/uiconfig/scalc/ui/headerfootercontent.ui b/sc/uiconfig/scalc/ui/headerfootercontent.ui
index 4bea5b3..c3d00de 100644
--- a/sc/uiconfig/scalc/ui/headerfootercontent.ui
+++ b/sc/uiconfig/scalc/ui/headerfootercontent.ui
@@ -318,6 +318,7 @@
                <property name="image">imageBTN_FILE</property>
                <property name="draw_indicator">True</property>
                <property name="popup">popup</property>
                <property name="direction">up</property>
                <property name="use_popover">False</property>
              </object>
              <packing>