feat(challenge33): about performance

apps/performance/default-onpush/src/app/random.component.ts

@@ -1,13 +1,10 @@
+import { CDFlashingDirective } from '@angular-challenges/shared/directives';
 import { Component } from '@angular/core';
+
 @Component({
   selector: 'app-random',
   standalone: true,
-  template: `I do nothing but I'm here: {{ count() }}`,
+  template: `<div cd-flash>I do nothing but I'm here</div>`,
+  imports: [CDFlashingDirective],
 })
-export class RandomComponent {
-  counter = 0;
-
-  count() {
-    return this.counter++;
-  }
-}
+export class RandomComponent {}