title: Tabulator context menu won't show
body: <p>I have a problem with Tabulator.js library. I am usig version 4.8, I would like to use context menu feature, but I am unable to make it work. When I use code from documentation (see bellow) browser default context menu is replaced by nothing (nothing shows up). I was not able to find answer to this. Is here someone with similar experience? I have tried three different browsers,but behavior appears to be same in every one of them.</p>
  <pre><code>rowContextMenu: [
      {
          label:&quot;Hide Column&quot;,
          action:function(e, column){
              column.hide();
          }
      },
      {
          separator:true,
      },
      {
          disabled:true,
          label:&quot;Move Column&quot;,
          action:function(e, column){
              column.move(&quot;col&quot;);
          }
      }
  ]
  </code></pre>