title: Nx not able to generate component after upgrading to v12
body: <p>After upgrading an <em>angular nx workspace</em> to the latest version <code>12.3.4</code> and converting the projects from <code>tslint</code> to <code>eslint</code>, I'm not able to generate components anymore.</p>
  <p>When running <code>nx g c shells/root --project=test-app</code> for example, an error is thrown saying <strong>'styleext' is not found in schema</strong>. Within the <code>angular.json</code> file, the following schematics are defined at the beginning:</p>
  <pre><code>&quot;schematics&quot;: {
      &quot;@nrwl/angular:application&quot;: {
        &quot;style&quot;: &quot;scss&quot;,
        &quot;linter&quot;: &quot;eslint&quot;,
        &quot;unitTestRunner&quot;: &quot;jest&quot;,
        &quot;e2eTestRunner&quot;: &quot;cypress&quot;
      },
      &quot;@nrwl/angular:library&quot;: {
        &quot;style&quot;: &quot;scss&quot;,
        &quot;linter&quot;: &quot;eslint&quot;,
        &quot;unitTestRunner&quot;: &quot;jest&quot;
      },
      &quot;@nrwl/angular:component&quot;: {
        &quot;style&quot;: &quot;scss&quot;,
        &quot;styleext&quot;: &quot;scss&quot;
      }
    },
  </code></pre>
  <p>Does someone had similar issues after upgrading to <code>v12</code>?</p>