define loading screen markup in js

customize.dist/pages.js

@@ -262,6 +262,20 @@ define([
         .concat(indexContent());
     };
 
+    var loadingScreen = function () {
+        return h('div#loading',
+            h('div.loadingContainer', [
+                h('img.cryptofist', {
+                    src: '/customize/cryptofist_small.png'
+                }),
+                h('div.spinnerContainer',
+                    h('span.fa.fa-spinner.fa-pulse.fa-4x.fa-fw')),
+                h('p', Msg.loading)
+            ])
+        );
+    };
+    loadingScreen = loadingScreen; // TODO use this
+
     Pages['/settings/'] = Pages['/settings/index.html'] = function () {
         return h('div#container');
     };