_makeSubMenuElement({ locale, name, iconStyle, makeSvgIcon, templateHtml }) {
    const iconSubMenu = document.createElement('div');
    iconSubMenu.className = `tui-image-editor-menu-${name}`;
    iconSubMenu.innerHTML = templateHtml({
      locale,
      iconStyle,
      makeSvgIcon,
    });

    this.subMenuElement.appendChild(iconSubMenu);
  }
Make submenu dom element
@param {Locale} locale - translate text
@param {string} name - submenu name
@param {Object} iconStyle -  icon style
@param {*} templateHtml - template for SubMenuElement
@private