message: [Qt] Refresh coin control when re-opening from CS widget
  Followup of for the Cold Staking UI widget
diff: @@ -494,6 +494,8 @@ void ColdStakingWidget::onCoinControlClicked(){
  if (!coinControlDialog) {
  coinControlDialog = new CoinControlDialog();
  coinControlDialog->setModel(walletModel);
  + } else {
  + coinControlDialog->updateView();
  }
  coinControlDialog->exec();
  ui->btnCoinControl->setActive(CoinControlDialog::coinControl->HasSelected());
  