move ui to using trunk

cargo install trunk

ui/js/Host.js

@@ -0,0 +1,14 @@
+const Host = {
+    components: { Downloads },
+    props: [ 'host', 'token', 'state' ],
+    template: `
+    <p>Cluster: {{ host.Cluster }}<template v-if="host.Template"> ({{ host.Template }})</template></p>
+    <p>IPs:
+    <code v-for="ip in host.IPs">
+      {{ ip }}{{" "}}
+    </code>
+    </p>
+  <h3>Downloads</h3>
+  <Downloads :token="token" :state="state" kind="host" :name="host.Name" />
+`
+}