There's a few small issues left over from #15450:

* [Focusing](https://github.com/bitcoin/bitcoin/pull/15450#pullrequestreview-282297760) on the `Encrypt Wallet` dialog after clicking `Create Wallet`.
> ```cpp
> m_passphrase_dialog->setWindowModality(Qt::ApplicationModal); 
> m_passphrase_dialog->show();
> ```

* Wallet [name escaping issue](https://github.com/bitcoin/bitcoin/pull/15450#pullrequestreview-282297760):
> This is at least one inconsistency where if you create a wallet with a HTML escaped character in the name, i.e Alice & Bob, then the & will not be shown in some menus / dialogs.

* Nits from this [review](https://github.com/bitcoin/bitcoin/pull/15450#pullrequestreview-284450044). 
{
    showProgressDialog(tr("Creating Wallet <b>%1</b>...").arg(m_create_wallet_dialog->walletName().toHtmlEscaped()));
    std::string name = m_create_wallet_dialog->walletName().toStdString();
    uint64_t flags = 0;
    if (m_create_wallet_dialog->disablePrivateKeys()) {
        flags |= WALLET_FLAG_DISABLE_PRIVATE_KEYS;
    }
    if (m_create_wallet_dialog->blank()) {
        flags |= WALLET_FLAG_BLANK_WALLET;
    }
    QTimer::singleShot(500, worker(), [this, name, flags] {
        std::unique_ptr<interfaces::Wallet> wallet;
        WalletCreationStatus status = node().createWallet(m_passphrase, flags, name, m_error_message, m_warning_message, wallet);
        if (status == WalletCreationStatus::SUCCESS) m_wallet_model = m_wallet_controller->getOrCreateWallet(std::move(wallet));
        QTimer::singleShot(500, this, &CreateWalletActivity::finish);
    });
}
void CreateWalletActivity::finish()