docs: update vite-ssr example

docs/guides/ssr.md

@@ -148,26 +148,25 @@ Sync VueQuery client state with [vite-ssr](https://github.com/frandiox/vite-ssr)
 // main.js (entry point)
 import App from "./App.vue";
 import viteSSR from "vite-ssr/vue";
-import { QueryClient, hydrate, dehydrate, VUE_QUERY_CLIENT } from "vue-query";
+import { QueryClient, VueQueryPlugin, hydrate, dehydrate } from "vue-query";
 
 export default viteSSR(App, { routes: [] }, ({ app, initialState }) => {
   // -- This is Vite SSR main hook, which is called once per request
 
   // Create a fresh VueQuery client
-  const client = new QueryClient();
+  const queryClient = new QueryClient();
 
   // Sync initialState with the client state
   if (import.meta.env.SSR) {
     // Indicate how to access and serialize VueQuery state during SSR
-    initialState.vueQueryState = { toJSON: () => dehydrate(client) };
+    initialState.vueQueryState = { toJSON: () => dehydrate(queryClient) };
   } else {
     // Reuse the existing state in the browser
-    hydrate(client, initialState.vueQueryState);
+    hydrate(queryClient, initialState.vueQueryState);
   }
 
   // Mount and provide the client to the app components
-  client.mount();
-  app.provide(VUE_QUERY_CLIENT, client);
+  app.use(VueQueryPlugin, { queryClient });
 });
 ```