Add UI to the setup tool for enabling ACI conversion

Fixes #1211

templates/index.html

@@ -10,9 +10,11 @@
   <meta id="descriptionTag" name="description" content="Quay is the best place to build, store, and distribute your containers. Public repositories are always free."></meta>
   <meta name="google-site-verification" content="GalDznToijTsHYmLjJvE4QaB9uk_IP16aaGDz5D75T4" />
   <meta name="fragment" content="!" />
+
+{% if aci_conversion %}
   <meta name="ac-discovery" content="{{ hostname }} {{ preferred_scheme }}://{{ hostname }}/c1/aci/{name}/{version}/{ext}/{os}/{arch}/">
   <meta name="ac-discovery-pubkeys" content="{{ hostname }} {{ preferred_scheme }}://{{ hostname }}/aci-signing-key">
-
+{% endif %}
 
 {% endblock %}