Update withdrawal authentication page with enhanced loading state and user feedback

- Improved loading state implementation during real-name authentication checks for better user experience.
- Updated styles for the loading state to provide clearer visual feedback while the status is being verified.
- Refined the user interface to streamline the authentication process and enhance overall usability.

server/plugins/ready.ts

@@ -0,0 +1,5 @@
+export default defineNitroPlugin(() => {
+  if (process.send) {
+    process.send('ready')
+  }
+})