feat: add httpClient provider

src/app/app.config.ts

@@ -3,6 +3,7 @@ import { provideRouter } from '@angular/router';
 
 import { routes } from './app.routes';
 import { strings } from './strings';
+import { provideHttpClient } from '@angular/common/http';
 
 const STRINGS_TOKEN = 'strings';
 export const STRINGS_INJECTOR = new InjectionToken<typeof strings>(STRINGS_TOKEN);
@@ -12,6 +13,7 @@ export const appConfig: ApplicationConfig = {
     provideBrowserGlobalErrorListeners(),
     provideZoneChangeDetection({ eventCoalescing: true }),
     provideRouter(routes),
+    provideHttpClient(),
     {provide: STRINGS_INJECTOR, useValue: strings}
   ]
 };