fix: Externalize react subpaths in dev-pages bundle for Rolldown (#154)

Author: SpyZzey

vite.dev-pages.config.mjs

@@ -19,7 +19,7 @@ export default defineConfig({
     outDir: "lib/dev-pages/bundle",
     sourcemap: true,
     rollupOptions: {
-      external: [/(?:\.\.\/)+?lib\/components/, /^@cloudscape-design\/(?!build-tools)/, "react"],
+      external: [/(?:\.\.\/)+?lib\/components/, /^@cloudscape-design\/(?!build-tools)/, /^react(-dom)?(\/|$)/],
     },
   },
 });