Update network error interstitial strings

components/security_interstitials/core/browser/resources/interstitial_v2.css

 /* Copyright 2014 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. */
 
 a {
   color: #585858;
 }
 
 .bad-clock .icon {
   background-image: -webkit-image-set(
       url(images/1x/clock.png) 1x,
       url(images/2x/clock.png) 2x);
 }
 
 body {
   background-color: #f7f7f7;
   color: #646464;
 }
 
 body.safe-browsing {
   background-color: rgb(206, 52, 38);
   color: white;
 }
 
 button {
   -webkit-user-select: none;
-  background: rgb(76, 142, 250);
+  background: rgb(66, 133, 244);
   border: 0;
   border-radius: 2px;
   box-sizing: border-box;
   color: #fff;
   cursor: pointer;
   float: right;
   font-size: .875em;
   margin: 0;
   padding: 10px 24px;
   transition: box-shadow 200ms cubic-bezier(0.4, 0, 0.2, 1);
@@ skipping 588 matching lines @@
     width: 100%;
   }
 }
 
 @media (max-width: 239px) and (orientation: portrait) {
   .nav-wrapper {
     padding-left: 0;
     padding-right: 0;
   }
 }