feat(roadmap/angular): add summary and resources about zones section (#6132)

src/data/roadmaps/angular/content/111-zones.md

@@ -1,3 +1,9 @@
 # Zones
 
-- [@official@Angular - NgZone](https://angular.dev/api/core/NgZone)
+Zone.js is a signaling mechanism that Angular uses to detect when an application state might have changed. 
+It captures asynchronous operations like setTimeout, network requests, and event listeners. 
+Angular schedules change detection based on signals from Zone.js.
+
+- [@official@Resolving zone pollution](https://angular.dev/best-practices/zone-pollution)
+- [@official@Angular without ZoneJS (Zoneless)](https://angular.dev/guide/experimental/zoneless)
+- [@official@NgZone - API](https://angular.dev/api/core/NgZone)