docs(angular): add missing code

Co-authored-by: Brandy Smith <[email protected]>

Author: thetaPC

docs/angular/your-first-app/2-taking-photos.md

@@ -44,6 +44,9 @@ import { Camera, CameraResultType, CameraSource, Photo } from '@capacitor/camera
 import { Filesystem, Directory } from '@capacitor/filesystem';
 import { Preferences } from '@capacitor/preferences';
 
+@Injectable({
+  providedIn: 'root',
+})
 export class PhotoService {
   // CHANGE: Add the gallery method
   public async addNewToGallery() {

docs/angular/your-first-app/5-adding-mobile.md

@@ -29,6 +29,9 @@ import { Preferences } from '@capacitor/preferences';
 // CHANGE: Add import
 import { Platform } from '@ionic/angular';
 
+@Injectable({
+  providedIn: 'root',
+})
 export class PhotoService {
   public photos: UserPhoto[] = [];
 

versioned_docs/version-v7/angular/your-first-app/2-taking-photos.md

@@ -44,6 +44,9 @@ import { Camera, CameraResultType, CameraSource, Photo } from '@capacitor/camera
 import { Filesystem, Directory } from '@capacitor/filesystem';
 import { Preferences } from '@capacitor/preferences';
 
+@Injectable({
+  providedIn: 'root',
+})
 export class PhotoService {
   // CHANGE: Add the gallery method
   public async addNewToGallery() {

versioned_docs/version-v7/angular/your-first-app/5-adding-mobile.md

@@ -29,6 +29,9 @@ import { Preferences } from '@capacitor/preferences';
 // CHANGE: Add import
 import { Platform } from '@ionic/angular';
 
+@Injectable({
+  providedIn: 'root',
+})
 export class PhotoService {
   public photos: UserPhoto[] = [];