Update Vue component tracking docs

Author: FloEdelmann

platform-includes/performance/configure-sample-rate/javascript.vue.mdx

@@ -29,9 +29,15 @@ If you want to track child components, you can configure the SDK using additiona
 ```javascript
 Sentry.init({
   Vue,
+  integrations: [
+    Sentry.vueIntegration({
+      tracingOptions: {
+        trackComponents: ["Header", "Navigation", "Footer"],
+        hooks: ["create", "mount"],
+      },
+    }),
+  ],
   tracesSampleRate: 0.1,
-  trackComponents: ["Header", "Navigation", "Footer"],
-  hooks: ["create", "mount"],
 });
 ```