refactor: Replace Webpack with Vite (#53)

src/pages/content/index.tsx

@@ -0,0 +1,18 @@
+import React from 'react';
+import { createRoot } from 'react-dom/client';
+import CourseCatalogMain from '@views/components/CourseCatalogMain';
+import getSiteSupport, { SiteSupport } from '@views/lib/getSiteSupport';
+
+const support = getSiteSupport(window.location.href);
+
+if (support === SiteSupport.COURSE_CATALOG_DETAILS || support === SiteSupport.COURSE_CATALOG_LIST) {
+    const container = document.createElement('div');
+    container.id = 'extension-root';
+    document.body.appendChild(container);
+
+    createRoot(container).render(
+        <React.StrictMode>
+            <CourseCatalogMain support={support} />
+        </React.StrictMode>
+    );
+}