[Offline Pages] Add network status, save request textbox, and offline url link to offline internals…

chrome/browser/resources/offline_pages/offline_internals.css

 /* Copyright 2016 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file. */
 
 h1 {
   color: rgb(74, 142, 230);
   margin: 0;
   padding: 0;
 }
 
 td {
   padding: 4px;
 }
 
 tr:nth-child(odd) {
   background-color: azure;
 }
 
 th {
   background-color: navy;
   color: white;
   font-weight: bold;
   padding: 5px;
 }
 
+table {
+  margin-bottom: 5px;
+}
+
 ul {
   border: 1px solid;
   list-style-type: none;
-  margin: 0;
+  margin-top: 5px;
   max-height: 300px;
   overflow: auto;
   padding: 5px;
   width: 100%;
 }
 
 ul li {
   list-style-position: outside;
   margin: 0 0 0 5px;
   padding: 0;
 }
 
 li:nth-child(2n) {
   background-color: lavender;
 }
+
+#current-status {
+  font-size: 15px;
+}