align the 'self-destruct' button to the right on the loading screen

customize.dist/loading.js

@@ -254,6 +254,10 @@ button:not(.btn).primary:hover{
     background-color: rgb(52, 118, 162);
 }
 
+nav {
+    text-align: right;
+}
+
 */}).toString().slice(14, -3);
     var urlArgs = window.location.href.replace(/^.*\?([^\?]*)$/, function (all, x) { return x; });
     var elem = document.createElement('div');

www/common/common-ui-elements.js

@@ -2552,7 +2552,7 @@ define([
 
         var block = h('div#cp-loading-burn-after-reading', [
             info,
-            button
+            h('nav', button),
         ]);
         UI.errorLoadingScreen(block);
     };