Correct the regression from the pull request #5

src/app/components/header/header.component.ts

@@ -7,31 +7,19 @@ import {ThemeService} from "../../services/theme.service";
     templateUrl: './header.component.html',
     styleUrls: ['./header.component.scss']
 })
-export class HeaderComponent implements OnInit {
-    title!: string;
-    version!: string;
-    sandkasten_logo!: string;
-    gitea_logo!: string;
-    isMenuOpen!: boolean;
-    isCheck!: boolean;
+export class HeaderComponent {
+    title: string = 'Sandkasten';
+    version: string = '1.0';
+    sandkasten_logo: string = 'assets/img/logo.png';
+    isMenuOpen: boolean = false;
+    isCheck: boolean = false;
     @ViewChild('menuRef') menuRef!: ElementRef;
     @Input() themeClass!: string;
     @Input() themeService!: ThemeService;
 
-
-
-
-    ngOnInit(): void {
-        this.title = 'Sandkasten';
-        this.version = '1.0';
-        this.sandkasten_logo = 'assets/img/logo.png';
-        this.gitea_logo = 'assets/img/gitea.png';
-        this.isMenuOpen = false;
-        this.isCheck = false;
-    }
-
     // Instanciation du service pour les actions de traduction
-    constructor(private translationService: TranslationService) {}
+    constructor(private translationService: TranslationService) {
+    }
 
     // Méthode pour changer la langue
     onLanguageChange(event: any) {