message: Fix options page
  Non-sem-ver API change
  Fixes
diff: -import Textarea from 'storm-textarea';
  +import textarea from 'storm-textarea';
  import OptionsSync from 'webext-options-sync';
  import indentTextarea from './libs/indent-textarea';
  -Textarea.init('textarea', {
  - events: ['input'],
  - paddingBottom: 2
  +textarea('textarea', {
  + events: ['input']
  });
  document.querySelector('[name="customCSS"]').addEventListener('keydown', event => {
  