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/app.component.ts

@@ -1,4 +1,4 @@
-import { Component, OnInit, AfterContentInit } from '@angular/core';
+import { Component, OnInit, AfterContentInit, inject } from '@angular/core';
 import { MAT_DATE_LOCALE, MAT_DATE_FORMATS, provideNativeDateAdapter } from '@angular/material/core';
 import { Title } from '@angular/platform-browser';
 
@@ -29,14 +29,12 @@ export const MY_FORMATS = {
     styleUrl: './app.component.scss',
 })
 export class AppComponent implements OnInit, AfterContentInit {
+    private userService = inject(UserService);
+    private titleService = inject(Title);
+
     public title = 'Ad Astra';
     public appClass = 'grayscale';
 
-    constructor(
-        private userService: UserService,
-        private titleService: Title,
-    ) {}
-
     ngOnInit() {
         this.userService.populate();
         this.titleService.setTitle(this.title);