title: use html in primeng p-toast
body: <p>I would like to use html code <br/> in primeng toast module.
  I have tried different options but cannot get it to work. </p>
  
  <pre><code>this.messageService.add({ sticky: true, severity: 'error', summary: 'Import job', detail: 'first line of text &lt;br\&gt;second line of text'});
  </code></pre>
  
  <p>anyone suggestions?</p>