title: In Angular Material, how to md-sidenav always open
body: <p>visible toggle button and close it whenever I want?</p>
  
  <p>I've done several attempts and failed.</p>
  
  <p>I uploaded the picture as it is today, but it does not toggle, only at lower resolutions.</p>
  
  <p>Any idea how to do this?</p>
  
  <p><a href="https://i.stack.imgur.com/FcXzy.jpg" rel="noreferrer"><img src="https://i.stack.imgur.com/FcXzy.jpg" alt="enter image description here"></a></p>