HIG, consistent border width for properties page

Change-Id: Iacaa53c167230d40bd7e68216ff9deb97c528063

sfx2/uiconfig/ui/documentfontspage.ui

@@ -4,16 +4,15 @@
   <object class="GtkGrid" id="DocumentFontsPage">
     <property name="visible">True</property>
     <property name="can_focus">False</property>
-    <property name="row_spacing">12</property>
-    <property name="column_spacing">18</property>
+    <property name="border_width">6</property>
+    <property name="row_spacing">6</property>
+    <property name="column_spacing">12</property>
     <child>
       <object class="GtkCheckButton" id="embedFonts">
         <property name="label" translatable="yes">_Embed fonts in the document</property>
-        <property name="use_action_appearance">False</property>
         <property name="visible">True</property>
         <property name="can_focus">True</property>
         <property name="receives_default">False</property>
-        <property name="use_action_appearance">False</property>
         <property name="use_underline">True</property>
         <property name="xalign">0</property>
         <property name="draw_indicator">True</property>

sfx2/uiconfig/ui/documentinfopage.ui

@@ -5,6 +5,7 @@
     <property name="visible">True</property>
     <property name="can_focus">False</property>
     <property name="hexpand">True</property>
+    <property name="border_width">6</property>
     <property name="row_spacing">6</property>
     <property name="column_spacing">18</property>
     <child>