auth service and API service added

ui/winstudentgoaltracker/src/app/app.config.ts

@@ -1,12 +1,15 @@
 import { ApplicationConfig, provideBrowserGlobalErrorListeners, provideZoneChangeDetection } from '@angular/core';
+import { provideHttpClient, withInterceptors } from '@angular/common/http';
 import { provideRouter } from '@angular/router';
 
 import { routes } from './app.routes';
+import { authInterceptor } from './interceptors/auth.interceptor';
 
 export const appConfig: ApplicationConfig = {
   providers: [
     provideBrowserGlobalErrorListeners(),
     provideZoneChangeDetection({ eventCoalescing: true }),
-    provideRouter(routes)
+    provideRouter(routes),
+    provideHttpClient(withInterceptors([authInterceptor])),
   ]
 };