tdf#112677 Correcting buttons position in certificate path dialog

Change-Id: I80e00083e851cd3db44a3ca9391225657526bfe4
Reviewed-on: https://gerrit.libreoffice.org/43045Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Olivier Hallot <olivier.hallot@libreoffice.org>
Tested-by: Olivier Hallot <olivier.hallot@libreoffice.org>

cui/uiconfig/ui/certdialog.ui

@@ -58,23 +58,7 @@
               <packing>
                 <property name="expand">False</property>
                 <property name="fill">True</property>
-                <property name="position">2</property>
-              </packing>
-            </child>
-            <child>
-              <object class="GtkButton" id="add">
-                <property name="label" translatable="yes" context="certdialog|add">_Add...</property>
-                <property name="visible">True</property>
-                <property name="can_focus">True</property>
-                <property name="can_default">True</property>
-                <property name="has_default">True</property>
-                <property name="receives_default">True</property>
-                <property name="use_underline">True</property>
-              </object>
-              <packing>
-                <property name="expand">False</property>
-                <property name="fill">True</property>
-                <property name="position">3</property>
+                <property name="position">0</property>
                 <property name="secondary">True</property>
               </packing>
             </child>
@@ -86,6 +70,33 @@
             <property name="position">0</property>
           </packing>
         </child>
+        <child internal-child="action_area">
+          <object class="GtkButtonBox" >
+            <property name="can_focus">False</property>
+            <child>
+                  <object class="GtkButton" id="add">
+                    <property name="label" translatable="yes" context="certdialog|add">_Add...</property>
+                    <property name="visible">True</property>
+                    <property name="can_focus">True</property>
+                    <property name="can_default">True</property>
+                    <property name="has_default">True</property>
+                    <property name="receives_default">True</property>
+                    <property name="use_underline">True</property>
+                  </object>
+                  <packing>
+                    <property name="expand">False</property>
+                    <property name="fill">False</property>
+                    <property name="position">0</property>
+                  </packing>
+            </child>
+          </object>
+          <packing>
+            <property name="expand">False</property>
+            <property name="fill">False</property>
+            <property name="pack_type">end</property>
+            <property name="position">3</property>
+          </packing>
+        </child>
         <child>
           <object class="GtkFrame" id="frame1">
             <property name="visible">True</property>