Add a selection and outline to flights-app.

sky/examples/flights-app/app-search-input.sky

Index: sky/examples/flights-app/app-search-input.sky
diff --git a/sky/examples/flights-app/app-search-input.sky b/sky/examples/flights-app/app-search-input.sky
index f87953aa80d1f1f4e4066ea0e1125ab24f84f24b..32bc810f65874b9ea35acb0d05a12dfbbb3910f2 100644
--- a/sky/examples/flights-app/app-search-input.sky
+++ b/sky/examples/flights-app/app-search-input.sky
@@ -22,6 +22,11 @@
 </template>
 <script>
 module.exports = class extends SkyElement {
+  attached() {
+    var sel = window.getSelection();
+    var input = this.shadowRoot.querySelector('t');
+    sel.selectAllChildren(input);
+  }
 }.register();
 </script>
 </sky-element>