title: Add custom buttons in Angular Highcharts Line Chart
body: <p>I'm trying to add 2 custom buttons in Angular Highcharts Line chart in the exporting property</p>
  
  <pre><code>exporting: {
      enabled: true,
      buttons: {
          customButton: {
              text: 'Custom Button',
              click: () =&gt; {
                  alert('You pressed the button!');
              },
          },
          anotherButton: {
              text: 'Another Button',
              click: () =&gt; {
                  alert('You pressed another button!');
              },
          },
      },
  }
  </code></pre>
  
  <p>But these 2 buttons not displaying. What could be the missing logic here?
  <a href="https://stackblitz.com/edit/angular-9nkrgd-iwgbma?file=src/app/app.component.ts" rel="nofollow noreferrer">Stackblitz</a></p>