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/product/product.component.ts

@@ -26,6 +26,9 @@ import { Errors, Product, ProductPageData } from '@models';
     ],
 })
 export class ProductComponent implements OnInit, OnDestroy {
+    private route = inject(ActivatedRoute);
+    private titleService = inject(Title);
+
     private _data: Subscription = new Subscription();
     public title = 'Ad Astra - Produit';
     public description = "Encore un peu de patience, notre shop sera mis en ligne d'ici peu.";
@@ -33,11 +36,6 @@ export class ProductComponent implements OnInit, OnDestroy {
     public destroyRef = inject(DestroyRef);
     public product: Product = {} as Product;
 
-    constructor(
-        private route: ActivatedRoute,
-        private titleService: Title,
-    ) {}
-
     ngOnInit() {
         const data$: Observable<{ pageData: ProductPageData }> = this.route.data as Observable<{
             pageData: ProductPageData;