title: apply material theme to ngx-datatable in ionic angular
body: <p>I'm developing a mobile application using the lateat ionic. I've installed ngx-datatable with npm to display some data. The table is working but I'm not able to apply the style. Following the documentation I added this to my page scss:</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-css lang-css prettyprint-override"><code>page-datapage{
  
    @import '~@swimlane/ngx-datatable/release/index.css';
    @import '/node_modules/@swimlane/ngx-datatable/release/themes/material.css';
    @import '~@swimlane/ngx-datatable/release/assets/icons.css';
  
  }</code></pre>
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  </p>
  
  <p>and this in my page template: </p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-html lang-html prettyprint-override"><code>  &lt;ngx-datatable class="material"
      [rows]="rows"
      [columns]="columns"&gt;
    &lt;/ngx-datatable&gt;</code></pre>
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  </p>
  
  <p>The table appear and it is working (even the sorting is working) but the table is is not styled and no icon appear.</p>