config_service: add a popup for icons and make cards more compact.

appengine/config_service/ui/src/config-ui/config-ui.html

 <!--
   Copyright 2017 The LUCI Authors. All rights reserved.
   Use of this source code is governed under the Apache License, Version 2.0
   that can be found in the LICENSE file.
 -->
 
 <link rel="import" href="../../bower_components/polymer/polymer.html">
 <link rel="import" href="../../bower_components/paper-search/paper-search-bar.html">
 <link rel="import" href="../../bower_components/app-route/app-location.html">
 <link rel="import" href="../../bower_components/app-route/app-route.html">
 <link rel="import" href="../../bower_components/app-layout/app-drawer-layout/app-drawer-layout.html">
 <link rel="import" href="../../bower_components/app-layout/app-header/app-header.html">
 <link rel="import" href="../../bower_components/app-layout/app-header-layout/app-header-layout.html">
 <link rel="import" href="../../bower_components/app-layout/app-toolbar/app-toolbar.html">
-<link rel="import" href="../../bower_components/app-layout/app-scroll-effects/effects/resize-title.html">
 
 <link rel="import" href="../../common/auth-signin.html">
 <link rel="import" href="config-set.html">
 <link rel="import" href="front-page.html">
 
 <dom-module id="config-ui">
   <template>
     <style>
       * { font-family: sans-serif; }
 
@@ skipping 12 matching lines @@
       .title {
         font-size: 125%;
         color: white;
       }
     </style>
 
     <app-drawer-layout fullbleed force-narrow>
 
       <app-header-layout>
 
-        <app-header reveals slot="header" effects="resize-title">
+        <app-header reveals slot="header">
           <app-toolbar>
             <!--<image class="logo" src="/static/images/chromium.png"/>-->
             <div class="title" main-title>
               Configuration Service
             </div>
 
             <template is="dom-if" if="[[client_id]]">
               <auth-signin
                   class="right"
                   client_id="[[client_id]]"
@@ skipping 67 matching lines @@
           // If the path is blank, redirect to /
           if (!this.route.path) {
             this.set('route.path', '/');
           }
         });
       },
 
     });
   </script>
 </dom-module>