docs(icon): update angular to standalone

Author: brandyscarney

static/usage/v8/icon/basic/angular.md

@@ -2,11 +2,23 @@
 import { Component } from '@angular/core';
 import { IonIcon } from '@ionic/angular/standalone';
 
+import { addIcons } from 'ionicons';
+import { logoIonic } from 'ionicons/icons';
+
 @Component({
   selector: 'app-example',
   templateUrl: 'example.component.html',
   styleUrls: ['example.component.css'],
   imports: [IonIcon],
 })
-export class ExampleComponent {}
+export class ExampleComponent {
+  constructor() {
+    /**
+     * Any icons you want to use in your application
+     * can be registered in app.component.ts and then
+     * referenced by name anywhere in your application.
+     */
+    addIcons({ logoIonic });
+  }
+}
 ```

static/usage/v8/icon/basic/angular/example_component_ts.md

@@ -12,7 +12,12 @@ import angular_example_component_ts from './angular/example_component_ts.md';
 <Playground
   version="8"
   code={{
-    javascript,
+    javascript: {
+      files: {
+        'index.html': javascript_index_html,
+        'index.ts': javascript_index_ts,
+      },
+    },
     react,
     vue,
     angular: {