Update strings for ash palette and rename options/settings files.

chrome/browser/resources/settings/device_page/stylus.js

 // 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.
 
 /**
  * @fileoverview
- * 'settings-note' is the settings subpage with note-specific settings.
+ * 'settings-stylus' is the settings subpage with stylus-specific settings.
  */
 
 Polymer({
-  is: 'settings-note',
+  is: 'settings-stylus',
 
   properties: {
     /** Preferences state. */
     prefs: {
       type: Object,
       notify: true,
     },
   }
 });