corrections des erreurs remarquées par Wilfried

src/app/advertiser/utils/navbar-advertiser/navbar-advertiser.component.spec.ts

@@ -0,0 +1,25 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { NavbarAdvertiserComponent } from './navbar-advertiser.component';
+
+describe('NavbarAdvertiserComponent', () => {
+  let component: NavbarAdvertiserComponent;
+  let fixture: ComponentFixture<NavbarAdvertiserComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      declarations: [ NavbarAdvertiserComponent ]
+    })
+    .compileComponents();
+  });
+
+  beforeEach(() => {
+    fixture = TestBed.createComponent(NavbarAdvertiserComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});