docs(buttons): update angular to standalone

Author: brandyscarney

static/usage/v7/buttons/basic/angular.md

@@ -5,6 +5,7 @@ import { IonButton, IonButtons, IonTitle, IonToolbar } from '@ionic/angular/stan
 @Component({
   selector: 'app-example',
   templateUrl: 'example.component.html',
+  styleUrls: ['example.component.css'],
   imports: [IonButton, IonButtons, IonTitle, IonToolbar],
 })
 export class ExampleComponent {}

static/usage/v7/buttons/basic/angular/example_component_ts.md

@@ -5,6 +5,7 @@ import { IonButton, IonButtons, IonTitle, IonToolbar } from '@ionic/angular/stan
 @Component({
   selector: 'app-example',
   templateUrl: 'example.component.html',
+  styleUrls: ['example.component.css'],
   imports: [IonButton, IonButtons, IonTitle, IonToolbar],
 })
 export class ExampleComponent {}

static/usage/v7/buttons/placement/angular.md

@@ -5,6 +5,7 @@ import { IonButton, IonButtons, IonTitle, IonToolbar } from '@ionic/angular/stan
 @Component({
   selector: 'app-example',
   templateUrl: 'example.component.html',
+  styleUrls: ['example.component.css'],
   imports: [IonButton, IonButtons, IonTitle, IonToolbar],
 })
 export class ExampleComponent {}

static/usage/v7/buttons/placement/angular/example_component_ts.md

@@ -5,6 +5,7 @@ import { IonButton, IonButtons, IonTitle, IonToolbar } from '@ionic/angular/stan
 @Component({
   selector: 'app-example',
   templateUrl: 'example.component.html',
+  styleUrls: ['example.component.css'],
   imports: [IonButton, IonButtons, IonTitle, IonToolbar],
 })
 export class ExampleComponent {}