Use onion address for ghost blog

src/freedombone-app-ghost

     configure_php
 
     GHOST_ONION_HOSTNAME=$(add_onion_service ghost 80 ${GHOST_ONION_PORT})
+    if [[ $ONION_ONLY != 'no' ]]; then
+        sed -i "s|url: .*|url: 'http://${GHOST_ONION_HOSTNAME}',|g" /var/www/${GHOST_DOMAIN_NAME}/htdocs/config.js
+        systemctl restart ghost
+    fi
 
     function_check nginx_ensite
     nginx_ensite $GHOST_DOMAIN_NAME