config: add vite preview config with allowed host for reflectonai.com

vite.config.js

@@ -0,0 +1,9 @@
+import { defineConfig } from 'vite';
+
+export default defineConfig({
+  preview: {
+    allowedHosts: [
+      "pk0skwc4ksc44gcowgkc4ggg.reflectonai.com"
+    ]
+  }
+});