Added firebase configuration

src/app/app.module.ts

@@ -32,7 +32,7 @@ import { NavButtonComponent } from './header/nav-button/nav-button.component';
 import { AngularFireModule } from '@angular/fire';
 import { AngularFirestoreModule } from '@angular/fire/firestore';
 import { AngularFireStorageModule } from '@angular/fire/storage';
-import { AngularFireAuthModule } from '@angular/fire/Auth';
+import { AngularFireAuthModule } from '@angular/fire/auth';
 
 const firebaseConfig = {
   apiKey: "AIzaSyAqd_QpGCW3GzW60dotvvPve5jlfjhYcQs",