message: Update copy on SSSS symmetric upgrade toast
  Fixes
diff: @@ -78,10 +78,11 @@ export default class SetupEncryptionToast extends React.PureComponent {
  switch (this.props.kind) {
  case 'set_up_encryption':
  case 'upgrade_encryption':
  - case 'upgrade_ssss':
  return _t('Verify yourself & others to keep your chats safe');
  case 'verify_this_session':
  return _t('Other users may not trust it');
  + case 'upgrade_ssss':
  + return _t('Update your secure storage');
  }
  }
  