chore(examples): cleanup

examples/astro-xyflow/astro.config.mjs

@@ -0,0 +1,8 @@
+import { defineConfig } from 'astro/config';
+import react from '@astrojs/react';
+import svelte from '@astrojs/svelte';
+
+// https://astro.build/config
+export default defineConfig({
+  integrations: [react(), svelte()],
+});