Add onion address for jabber.cat

src/freedombone-app-xmpp

     echo '  ["wtfismyip.com"] = "ofkztxcohimx34la.onion";' >> $filename
     echo '  ["prosody.xmpp.is"] = "y2qmqomqpszzryei.onion";' >> $filename
     echo '  ["xndr.de"] = "trcubpttd6zkc3tf.onion";' >> $filename
+    echo '  ["jabber.cat"] = "sybzodlxacch7st7.onion";' >> $filename
     echo '  ["trashserver.net"] = "m4c722bvc2r7brnn.onion";' >> $filename
     echo '};' >> $filename
 }