Fixed paper-item links not firing on edges.

The links were sitting in the middle of the items, with plenty of ripply
but non-performing space around them...

resources/report/css/style.css

@@ -59,6 +59,11 @@ div[drawer] {
 paper-item > a {
     text-decoration: none;
     color: black;
+    position: absolute;
+    top: 0;
+    bottom: 0;
+    left: 0;
+    right: 0;
 }
 #container {
     position: fixed;

resources/report/report.html

@@ -107,10 +107,10 @@
             <core-animated-pages selected="0" transitions="slide-from-right" flex>
                 <div id="cardsNav" class="tab-content" layout vertical>
                     <paper-item>
-                        <a href="#summary">Summary</a>
+                        <a href="#summary"></a>Summary
                     </paper-item>
                     <paper-item>
-                        <a href="#generalMessages">General Messages</a>
+                        <a href="#generalMessages"></a>General Messages
                     </paper-item>
                     <core-list flex>
                         <template>