feat(nextjs): Improve logs documentation with split-view layout

docs/platforms/javascript/guides/nextjs/index.mdx

@@ -112,6 +112,9 @@ Sentry.init({
   // ___PRODUCT_OPTION_START___ performance
   tracesSampleRate: process.env.NODE_ENV === "development" ? 1.0 : 0.1,
   // ___PRODUCT_OPTION_END___ performance
+  // ___PRODUCT_OPTION_START___ logs
+  enableLogs: true,
+  // ___PRODUCT_OPTION_END___ logs
 });
 ```