Update dependencies - spring boot 4 and angular 21 (#10)

Co-authored-by: Florian THIERRY
Reviewed-on: #10

frontend/src/app/components/side-menu/side-menu.component.ts

@@ -6,17 +6,16 @@ import { CategoriesMenuComponent } from './categories-menu/categories-menu.compo
 import { MatRippleModule } from '@angular/material/core';
 
 @Component({
-  selector: 'app-side-menu',
-  standalone: true,
-  templateUrl: './side-menu.component.html',
-  styleUrl: './side-menu.component.scss',
-  imports: [
-    CategoriesMenuComponent, 
-    MatIconModule,
-    MatRippleModule, 
-    MatTooltipModule,
-    RouterModule
-  ]
+    selector: 'app-side-menu',
+    templateUrl: './side-menu.component.html',
+    styleUrl: './side-menu.component.scss',
+    imports: [
+        CategoriesMenuComponent,
+        MatIconModule,
+        MatRippleModule,
+        MatTooltipModule,
+        RouterModule
+    ]
 })
 export class SideMenuComponent {
   isOpenned: boolean = false;