Added sample UI design

- Added credits component
- Added simple icons
- Made navbar responsive for mobile
- Added credits/upload/download/home/navbar components
- Created simple design for home component
- Added tailwindcss and daisyUI and TailwindCSS

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

@@ -0,0 +1,23 @@
+import { ComponentFixture, TestBed } from '@angular/core/testing';
+
+import { NavbarComponent } from './navbar.component';
+
+describe('NavbarComponent', () => {
+  let component: NavbarComponent;
+  let fixture: ComponentFixture<NavbarComponent>;
+
+  beforeEach(async () => {
+    await TestBed.configureTestingModule({
+      imports: [NavbarComponent]
+    })
+    .compileComponents();
+    
+    fixture = TestBed.createComponent(NavbarComponent);
+    component = fixture.componentInstance;
+    fixture.detectChanges();
+  });
+
+  it('should create', () => {
+    expect(component).toBeTruthy();
+  });
+});