refactor: Redirect to orginal route after login, restructure project files

frontend/src/app/feature/landing/landing.component.ts

@@ -0,0 +1,21 @@
+import { Component, inject } from '@angular/core';
+import { KeycloakService } from 'keycloak-angular';
+import { RouterLink } from '@angular/router';
+
+@Component({
+  selector: 'app-landing',
+  standalone: true,
+  imports: [RouterLink],
+  templateUrl: './landing.component.html',
+})
+export class LandingComponent {
+  private keycloakService: KeycloakService = inject(KeycloakService);
+
+  public isLoggedIn = this.keycloakService.isLoggedIn();
+
+  public login() {
+    const baseUrl = window.location.origin;
+
+    this.keycloakService.login({ redirectUri: `${baseUrl}/home` });
+  }
+}