text: import { view } from './view.js';
  import { toolbar } from './toolbar.js';
  import { menu } from './menu.js';
  import { header } from './header.js';
  
  document.body.appendChild(
      X.createElement('div', {
          id: 'app',
          style: {
              display: 'flex',
              position: 'fixed',
              left: '0',
              top: '0',
              width: '100%',
              height: '100%',
              padding: '1em',
              flexDirection: 'column',
          },
      },
          header,
          view,
          toolbar,
          menu,
      )
  );
  