[Files.app] Make the border 1px in the suggest app dialog.

chrome/browser/resources/file_manager/css/file_manager.css

 /* Copyright (c) 2012 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. */
 
 /* The order of z-index:
  * - 2: drag-selection-bodrder
  * - 3: preview-panel
  * - 500: scrollbar
  * - 500: splitter
  * - 550: autocomplete-suggestions
@@ skipping 1858 matching lines @@
 
 #suggest-app-dialog .cr-dialog-title {
   /* Entire height: 44px (content-box 22px + padding 11px * 2) */
   font-size: 16px;
   height: 22px;
   margin: 0;
   padding: 11px 18px;
 }
 
 #suggest-app-dialog #webview-container {
-  border-bottom: solid 2px #bbb;
-  border-top: solid 2px #bbb;
+  border-bottom: solid 1px #bbb;
+  border-top: solid 1px #bbb;
   transition: height 200ms ease;
 }
 
 #suggest-app-dialog #webview-container:not(.loaded) webview {
   visibility: hidden;
 }
 
 #suggest-app-dialog .cr-dialog-buttons,
 #suggest-app-dialog .cr-dialog-text,
 #suggest-app-dialog .cr-dialog-ok,
@@ skipping 67 matching lines @@
 }
 
 .share-dialog-webview-wrapper:not(.loaded) .share-dialog-webview {
   visibility: hidden;
 }
 
 .share-dialog-frame .cr-dialog-text,
 .share-dialog-frame .cr-dialog-buttons {
   display: none;
 }