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/shared/tenant-selector/tenant-selector.component.html

@@ -4,8 +4,10 @@
   </span>
   <mat-label>{{ 'labels.inputs.Tenant' | translate }}</mat-label>
   <mat-select [formControl]="tenantSelector" (selectionChange)="setTenantIdentifier()" class="tenantselector">
-    <mat-option *ngFor="let tenant of tenants" [value]="tenant">
-      {{ tenant }}
-    </mat-option>
+    @for (tenant of tenants; track tenant) {
+      <mat-option [value]="tenant">
+        {{ tenant }}
+      </mat-option>
+    }
   </mat-select>
 </mat-form-field>

src/app/shared/tenant-selector/tenant-selector.component.ts

@@ -1,4 +1,4 @@
-import { Component, OnInit } from '@angular/core';
+import { Component, OnInit, inject } from '@angular/core';
 import { UntypedFormControl, ReactiveFormsModule } from '@angular/forms';
 import { SettingsService } from 'app/settings/settings.service';
 import { MatFormField, MatPrefix, MatLabel } from '@angular/material/form-field';
@@ -16,15 +16,11 @@ import { STANDALONE_SHARED_IMPORTS } from 'app/standalone-shared.module';
   ]
 })
 export class TenantSelectorComponent implements OnInit {
+  private settingsService = inject(SettingsService);
+
   /** Tenant selector form control. */
   tenantSelector = new UntypedFormControl();
 
-  /**
-   * Sets the Tenant Identifier of the application in the selector on initial setup.
-   * @param {SettingsService} settingsService Settings Service.
-   */
-  constructor(private settingsService: SettingsService) {}
-
   ngOnInit(): void {
     this.tenantSelector.setValue(this.settingsService.tenantIdentifier);
     if (this.tenants.length > 1) {