title: Angular 10 upgrade messed up ag-grid-angular dropdown look-n-feel
body: <p>My ag-grid-angular version has been upgraded to 24.0.0. as a process of Angular 10 upgrade (npm update --all).
  Everything works fine in terms of functionality, angular material components look-n-feel, and third party libraries I am using (e.g. ag-angular-grid, Highchart, splitter, ag-grid, etc..)</p>
  <p>But somehow I have lost the default look-n-feel of the ag-angular-grid dropdown (editing grid - cellEditor: 'agSelectCellEditor')</p>
  <p>Here's the comparison of look-n-feel before and after upgrade for more clarity.
  <a href="https://i.stack.imgur.com/fTkXx.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/fTkXx.png" alt="ag-angular-grid dropdown comparison before &amp; after upgrade" /></a></p>
  <p>Version after angular 10 upgrade (package.json):</p>
  <pre><code>&quot;@angular-devkit/build-angular&quot;: &quot;^0.1001.1&quot;,
  &quot;@angular/animations&quot;: &quot;^10.1.2&quot;,
  &quot;@angular/cdk&quot;: &quot;^10.2.1&quot;,
  &quot;@angular/common&quot;: &quot;^10.1.2&quot;,
  &quot;@angular/compiler&quot;: &quot;^10.1.2&quot;,
  &quot;@angular/core&quot;: &quot;^10.1.2&quot;,
  &quot;@angular/flex-layout&quot;: &quot;^10.0.0-beta.32&quot;,
  &quot;@angular/forms&quot;: &quot;^10.1.2&quot;,
  &quot;@angular/http&quot;: &quot;^7.2.16&quot;,
  &quot;@angular/material&quot;: &quot;^10.2.1&quot;,
  &quot;@angular/platform-browser&quot;: &quot;^10.1.2&quot;,
  &quot;@angular/platform-browser-dynamic&quot;: &quot;^10.1.2&quot;,
  &quot;@angular/router&quot;: &quot;^10.1.2&quot;,
  &quot;@types/jest&quot;: &quot;^26.0.14&quot;,
  &quot;ag-grid-angular&quot;: &quot;^24.0.0&quot;,
  &quot;ag-grid-community&quot;: &quot;^24.0.0&quot;,
  </code></pre>
  <p>Appreciate your help.</p>