title: Unable to apply theme in angular ag grid in angular 10
body: <p>I am using Angular 10 in my project with ag-grid-community 25.1 version. Up on running the application with the ag-theme-alphine.css I get the below error.</p>
  <pre><code>Error: Failed to find '../node_modules/ag-grid-community/dist/styles/ag-theme-alpine.css'
    in [
      /Users/ranjith/workspace/my-project/src/app/pages/headercard/components/programs-header
    ]
  </code></pre>
  <p>styles.scss</p>
  <pre><code>@import &quot;../node_modules/ag-grid-community/dist/styles/ag-grid.scss&quot;;
  @import &quot;../node_modules/ag-grid-community/dist/styles/ag-theme-alpine.css&quot;;
  </code></pre>
  <p>I am sure that I have this file in the node_modules directory.
  Note: I am using scss in my project.</p>