fix local setup

Author: bahrimootaz

docusaurus.config.js

@@ -1,5 +1,9 @@
-const unwrapJsx = require('./src/plugins/unwrap-jsx');
+// Load default export (must be a function)
+const unwrapJsx = require('./src/plugins/unwrap-jsx').default;
 
+if (typeof unwrapJsx !== 'function') {
+    throw new Error('unwrapJsx plugin is not a function');
+}
 // Enabling PR previews
 let siteBaseUrl = '/';
 if (process.env.PREVIEW_PATH) siteBaseUrl += process.env.PREVIEW_PATH;