Margins updated

ubl-settings-usergroups.glade

@@ -103,6 +103,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
   <object class="GtkBox" id="PlugBox">
     <property name="visible">True</property>
     <property name="can-focus">False</property>
+    <property name="margin-top">5</property>
     <property name="hexpand">True</property>
     <property name="vexpand">True</property>
     <property name="spacing">5</property>
@@ -110,6 +111,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
       <object class="GtkBox">
         <property name="visible">True</property>
         <property name="can-focus">False</property>
+        <property name="margin-top">2</property>
         <property name="orientation">vertical</property>
         <property name="spacing">5</property>
         <child>