[issues] Made bar sticky

Author: LeaVerou

issues.html

@@ -14,7 +14,7 @@
 	 mv-source="{$url.spec}/issues-{$url.doc}.json"
 	 mv-github-commit-prefix="[{$url.spec}] ">
 	<header>
-		<div class="mv-bar mv-ui"></div>
+		<div class="mv-bar mv-ui mv-fixed"></div>
 		<h1>
 			<a href="{$url.spec}" mv-attribute="null" property="title"></a>
 		</h1>