fix(ssr): polyfill IntersectionObserver for Node.js SSR runtime

resources/js/ssr.js

@@ -1,3 +1,12 @@
+if (typeof globalThis.IntersectionObserver === 'undefined') {
+    globalThis.IntersectionObserver = class {
+        constructor() {}
+        observe() {}
+        unobserve() {}
+        disconnect() {}
+    };
+}
+
 import '../css/app.css';
 import { createInertiaApp } from '@inertiajs/vue3'
 import createServer from '@inertiajs/vue3/server'