Refactored basic mode to a directive.

res/app/components/stf/basic-mode/basic-mode-directive.js

@@ -0,0 +1,15 @@
+module.exports = function basicModeDirective($rootScope, BrowserInfo) {
+  return {
+    restrict: 'AE',
+    link: function (scope, element, attrs) {
+      $rootScope.basicMode = !!BrowserInfo.small // TODO: use .mobile
+      if ($rootScope.basicMode) {
+        element.addClass('basic-mode')
+      }
+
+      if (BrowserInfo.mobile) {
+        element.addClass('mobile')
+      }
+    }
+  }
+}