feat(challenge34): default vs onpush perfoamnce serie

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

@@ -0,0 +1,13 @@
+import { Component } from '@angular/core';
+@Component({
+  selector: 'app-random',
+  standalone: true,
+  template: `I do nothing but I'm here: {{ count() }}`,
+})
+export class RandomComponent {
+  counter = 0;
+
+  count() {
+    return this.counter++;
+  }
+}