docs: use js polyfill for css-has-pseudo

site/docusaurus.config.ts

@@ -311,7 +311,11 @@ const config: Config = {
        */
       playgroundPosition: 'bottom'
     }
-  } as ClassicPresetThemeConfig
+  } as ClassicPresetThemeConfig,
+
+  clientModules: [
+    './src/polyfills/css-has.js'
+  ]
 };
 
 export default config;

site/src/pages/index.tsx

@@ -5,6 +5,7 @@ import useDocusaurusContext from '@docusaurus/useDocusaurusContext';
 import Layout from '@theme/Layout';
 import HomepageFeatures from '@site/src/components/HomepageFeatures';
 
+
 import styles from './index.module.css';
 
 function HomepageHeader() {

site/src/polyfills/css-has.js

@@ -0,0 +1,5 @@
+import ExecutionEnvironment from '@docusaurus/ExecutionEnvironment';
+
+if (ExecutionEnvironment.canUseDOM) {
+  require('css-has-pseudo/browser').cssHasPseudo(document);
+}