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/credits/credits.component.html

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+<p>credits works!</p>
+<h2>
+  Used media
+</h2>
+<ul>
+  <li>
+    <p>App Icon by flaticon.com</p>
+    <a href="https://www.flaticon.com/de/autoren/najmunnahar">NajmunNahar</a>
+  </li>
+</ul>

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

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

frontend/src/app/credits/credits.component.ts

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+import { Component } from '@angular/core';
+
+@Component({
+  selector: 'app-credits',
+  standalone: true,
+  imports: [],
+  templateUrl: './credits.component.html',
+  styleUrl: './credits.component.scss'
+})
+export class CreditsComponent {
+
+}