docs: 📝 Add a comment to explain ordering of plugins

Author: gingerbenw

packages/platforms/browser/lib/browser.ts

@@ -50,9 +50,11 @@ const BugsnagPerformance = createClient({
       backgroundingListener,
       performance
     ),
+    // ResourceLoadPlugin should always come after FullPageLoad plugin, as it should use that
+    // span context as the parent of it's spans
+    new ResourceLoadPlugin(spanFactory, spanContextStorage, window.PerformanceObserver),
     new NetworkRequestPlugin(spanFactory, fetchRequestTracker, xhrRequestTracker),
-    new RouteChangePlugin(spanFactory, window.location),
-    new ResourceLoadPlugin(spanFactory, spanContextStorage, window.PerformanceObserver)
+    new RouteChangePlugin(spanFactory, window.location)
   ],
   persistence
 })