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.html

@@ -0,0 +1,28 @@
+<header>
+  <nav class="bg-white border-gray-200 px-4 lg:px-6 py-2.5 border-b-2 border-accent-content/5" [ngClass]="{'navbar-shadow': isMenuOpen}">
+    <div class="flex flex-wrap justify-between items-center mx-auto max-w-screen-xl">
+      <a routerLink="/" class="flex items-center">
+        <img src="./assets/cloud-solid.svg" class="mr-3 h-6 sm:h-9" alt="Flowbite Logo" />
+        <span class="self-center text-xl font-semibold whitespace-nowrap">SharePulse</span>
+      </a>
+      <div class="flex items-center lg:order-2">
+        <a routerLink="/credits" class="text-gray-800  hover:bg-gray-50 focus:ring-4 focus:ring-gray-300 font-medium rounded-lg text-sm px-4 lg:px-5 py-2 lg:py-2.5 mr-2">Administration</a>
+        <button (click)="toggleMenu()" type="button" class="inline-flex items-center p-2 ml-1 text-sm text-gray-500 rounded-lg lg:hidden hover:bg-gray-100 " aria-controls="mobile-menu-2" aria-expanded="false">
+          <span class="sr-only">Open main menu</span>
+          <svg class="w-6 h-6" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M3 5a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zM3 10a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zM3 15a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1z" clip-rule="evenodd"></path></svg>
+          <svg class="hidden w-6 h-6" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" d="M4.293 4.293a1 1 0 011.414 0L10 8.586l4.293-4.293a1 1 0 111.414 1.414L11.414 10l4.293 4.293a1 1 0 01-1.414 1.414L10 11.414l-4.293 4.293a1 1 0 01-1.414-1.414L8.586 10 4.293 5.707a1 1 0 010-1.414z" clip-rule="evenodd"></path></svg>
+        </button>
+      </div>
+      <div [ngClass]="{'hidden': !isMenuOpen, 'flex': isMenuOpen}" class="justify-between items-center w-full lg:flex lg:w-auto lg:order-1" id="mobile-menu-2">
+        <ul class="flex flex-col mt-4 font-medium lg:flex-row lg:space-x-8 lg:mt-0">
+          <li>
+            <a routerLink="/upload" class="block py-2 pr-4 pl-3 rounded bg-primary-700 lg:bg-transparent lg:text-primary-700 lg:p-0" aria-current="page">Upload</a>
+          </li>
+          <li>
+            <a routerLink="/download" class="block py-2 pr-4 pl-3 rounded bg-primary-700 lg:bg-transparent lg:text-primary-700 lg:p-0" aria-current="page">Download</a>
+          </li>
+        </ul>
+      </div>
+    </div>
+  </nav>
+</header>

frontend/src/app/navbar/navbar.component.scss

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+.navbar-shadow {
+  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.1);
+}

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

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+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();
+  });
+});

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

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+import { Component } from '@angular/core';
+import {RouterLink} from "@angular/router";
+import {NgClass} from "@angular/common";
+
+@Component({
+  selector: 'app-navbar',
+  standalone: true,
+  imports: [
+    RouterLink,
+    NgClass
+  ],
+  templateUrl: './navbar.component.html',
+  styleUrl: './navbar.component.scss'
+})
+export class NavbarComponent {
+  isMenuOpen = false;
+
+  toggleMenu(): void {
+    this.isMenuOpen = !this.isMenuOpen;
+  }
+}