Merge pull request #1314 from lnbits/gertyfix

added proper if for showing urls

lnbits/extensions/gerty/templates/gerty/gerty.html

@@ -96,7 +96,7 @@ gertyname }}{% endraw %}{% endblock %}{% block page %} {% raw %}
       </p>
     </q-card-section>
   </q-card>
-  <q-card class="q-pa-sm" v-if="url_checker" unelevated class="q-pa-sm">
+  <q-card class="q-pa-sm" v-if="url_checker[0]" unelevated class="q-pa-sm">
     <q-card-section>
       <div class="text-h6">Servers to check</div>
     </q-card-section>