Upgrading to Angular 20:

Replaced checked in package-lock.json by regenerated one.
Ran ng update @angular/core@20 @angular/cli@20
Ran npm install @angular-builders/jest@^20.0.0 @fortawesome/angular-fontawesome@^3.0.0 @swimlane/ngx-graph@^11
Ran npm install ngx-mat-select-search@^8.0.2.
Ran ng update @angular/material@20.
Updated all eslint and typescript to the latest versions.
Removed @angular-devkit/schematics.
Updated fontawesome.
Updated rxjs and tslib.
Moved required node version from 16 to 20.
Updated jest-preset-angular.
Set preserveWhitespaces to false.
Corrected two type declarations in two typescript files to make ng serve run without errors.
Removed unused angular-devkit/schematics from view-user.component.ts .
Updated list of supported browsers.
Upgraded prettier.
Ran prettier . --write the first time.
Ran prettier . --write the second time.
Ran ng generate @angular/core:inject with defaults, excepted a handful of files.
Fixed remaining eslint problems.
Added dist directory to ignores in eslint.config.js.
Let prettier fix formatting, almost everything is just line breaks.
Made htmlhint ignore @if and @for Angular constructs.
Updated node version in Github workflow to 22.12.0 (build.yml).
Updated .env.ts.
Updated Angular datetime format strings from YYYY-MM-DD to yyyy-MM-dd.
Merged changes from dev into angular20 branch.

src/app/zitadel/token.interceptor.ts

@@ -1,4 +1,4 @@
-import { Injectable } from '@angular/core';
+import { Injectable, inject } from '@angular/core';
 import { HttpEvent, HttpInterceptor, HttpHandler, HttpRequest, HttpErrorResponse } from '@angular/common/http';
 import { Observable, throwError, from } from 'rxjs';
 import { catchError } from 'rxjs/operators';
@@ -7,11 +7,11 @@ import { environment } from '../../environments/environment';
 
 @Injectable()
 export class TokenInterceptor implements HttpInterceptor {
+  private authService = inject(AuthService);
+
   public environment = environment;
   FINERACT_PLATFORM_TENANT_IDENTIFIER = environment.fineractPlatformTenantId;
 
-  constructor(private authService: AuthService) {}
-
   intercept(req: HttpRequest<any>, next: HttpHandler): Observable<HttpEvent<any>> {
     const token = this.authService.getAccessToken();
     let headersConfig: { [key: string]: string } = {