message: Add placeholder to security phrase input
diff: @@ -158,6 +158,7 @@ export default class AccessSecretStorageDialog extends React.PureComponent {
  value={this.state.passPhrase}
  autoFocus={true}
  autoComplete="new-password"
  + placeholder={_t("Security Phrase")}
  />
  {keyStatus}
  <DialogButtons
  