Add icon for iOS

theme/templates/layout.html

@@ -12,6 +12,7 @@
         <meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
         <meta name="apple-mobile-web-app-capable" content="yes">
         <meta name="apple-mobile-web-app-status-bar-style" content="black">
+        <link rel="apple-touch-icon-precomposed" sizes="152x152" href="{{ staticBase }}/images/apple-touch-icon-precomposed-152.png">
         <link rel="shortcut icon" href="{{ staticBase }}/images/favicon.ico" type="image/x-icon">
         {% block head %}{% endblock %}
         {{ htmlSnippet("head:end")|default("") }}