style: format code and add prettier configuration files

src/app/navbar/navbar.component.spec.ts

@@ -8,9 +8,8 @@ describe('NavbarComponent', () => {
 
   beforeEach(async () => {
     await TestBed.configureTestingModule({
-      imports: [NavbarComponent]
-    })
-    .compileComponents();
+      imports: [NavbarComponent],
+    }).compileComponents();
 
     fixture = TestBed.createComponent(NavbarComponent);
     component = fixture.componentInstance;

src/app/navbar/navbar.component.ts

@@ -7,6 +7,4 @@ import { Component, ViewEncapsulation } from '@angular/core';
   styleUrl: './navbar.component.css',
   encapsulation: ViewEncapsulation.None,
 })
-export class NavbarComponent {
-
-}
+export class NavbarComponent {}