NB implementation: add icon to InsertAuthoritiesEntry (tabbed bar)

Change-Id: Ie0971fae1ef3d02ab0c9ca8cce1cd1fd3d7b6166
Reviewed-on: https://gerrit.libreoffice.org/52050Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: andreas_kainz <kainz.a@gmail.com>

officecfg/registry/data/org/openoffice/Office/UI/WriterCommands.xcu

@@ -146,7 +146,7 @@
           <value xml:lang="en-US">~Bibliography Entry...</value>
         </prop>
         <prop oor:name="Properties" oor:type="xs:int">
-          <value>8</value>
+          <value>9</value>
         </prop>
       </node>
       <node oor:name=".uno:ShadowCursor" oor:op="replace">