Fix for asset route

Author: alopezo

src/app/expo-quiz-2025/expo-quiz-2025.component.css

@@ -57,7 +57,6 @@ header p {
     left: 0;
     width: 100%;
     height: 100%;
-    background-image: url('assets/img/antwerp.png');
     background-size: cover;
     background-position: center;
     background-repeat: no-repeat;

src/app/expo-quiz-2025/expo-quiz-2025.component.html

@@ -6,7 +6,7 @@ <h1>🎯 Expo 2025 Terminology Quiz</h1>
 
     <!-- Quiz Selector - Videogame Style Menu -->
     <div class="quiz-selector videogame-menu" *ngIf="showQuizSelector">
-        <div class="menu-background"></div>
+        <div class="menu-background" [style.background-image]="'url(' + backgroundImage + ')'"></div>
         <div class="menu-content">
             <div class="menu-buttons">
                 <button class="menu-btn" (click)="startQuiz('food')">

src/app/expo-quiz-2025/expo-quiz-2025.component.ts

@@ -170,6 +170,9 @@ export class ExpoQuiz2025Component implements OnInit, OnDestroy {
   // Event name for grouping quiz results
   eventName: string = 'Expo 2025';
 
+  // Background image path
+  backgroundImage: string = 'assets/img/antwerp.png';
+  
   // Loading states
   isLoadingLeaderboards: boolean = false;