chore(deps): upgrade Angular 19 → 20

- ng update @angular/core@20 @angular/cli@20 @angular/material@20 @angular-eslint@20 @angular/google-maps@20
- Remove ng-chartist (abandoned, incompatible with Angular 20): replace <x-chartist> with <app-bars-chart> in dropzones-bar and jumps-by-month
- Migrate all constructor injection to inject() function (ng generate @angular/core:inject, 67 files)
- TypeScript 5.5 → 5.9.3
- DOCUMENT import moved from @angular/common to @angular/core (automatic migration)
- tsconfig moduleResolution updated to "bundler"

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

@@ -26,17 +26,15 @@ import { UserService } from '@services';
     ],
 })
 export class HeaderComponent implements OnInit {
+    private router = inject(Router);
+    private userService = inject(UserService);
+
     private _currentUser: Subscription = new Subscription();
     private _isAuthenticated: Subscription = new Subscription();
     private isAuthenticated = false;
     currentUser: User = {} as User;
     destroyRef = inject(DestroyRef);
 
-    constructor(
-        private router: Router,
-        private userService: UserService,
-    ) {}
-
     ngOnInit() {
         const user$: Observable<User> = this.userService.currentUser.pipe(takeUntilDestroyed(this.destroyRef));
         this._currentUser = user$.subscribe((userData) => {