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/centers/centers-view/notes-tab/notes-tab.component.html

@@ -26,22 +26,24 @@
     </form>
   </div>
   <mat-list>
-    <mat-list-item *ngFor="let centerNote of centerNotes; let i = index">
-      <fa-icon icon="sticky-note" matListIcon></fa-icon>
-      <h3 matLine>{{ centerNote.note }}</h3>
-      <p matLine>
-        <span>{{ 'labels.inputs.Created By' | translate }}: {{ centerNote.createdByUsername }}</span
-        ><br />
-        <span>{{ 'labels.inputs.Date' | translate }}: {{ centerNote.createdOn | dateFormat }}</span>
-      </p>
-      <div class="layout-row align-start">
-        <button mat-button color="primary" (click)="editNote(centerNote.id, centerNote.note, i)">
-          <fa-icon icon="edit"></fa-icon>
-        </button>
-        <button mat-button color="warn" (click)="deleteNote(centerNote.id, i)">
-          <fa-icon icon="trash"></fa-icon>
-        </button>
-      </div>
-    </mat-list-item>
+    @for (centerNote of centerNotes; track centerNote; let i = $index) {
+      <mat-list-item>
+        <fa-icon icon="sticky-note" matListIcon></fa-icon>
+        <h3 matLine>{{ centerNote.note }}</h3>
+        <p matLine>
+          <span>{{ 'labels.inputs.Created By' | translate }}: {{ centerNote.createdByUsername }}</span
+          ><br />
+          <span>{{ 'labels.inputs.Date' | translate }}: {{ centerNote.createdOn | dateFormat }}</span>
+        </p>
+        <div class="layout-row align-start">
+          <button mat-button color="primary" (click)="editNote(centerNote.id, centerNote.note, i)">
+            <fa-icon icon="edit"></fa-icon>
+          </button>
+          <button mat-button color="warn" (click)="deleteNote(centerNote.id, i)">
+            <fa-icon icon="trash"></fa-icon>
+          </button>
+        </div>
+      </mat-list-item>
+    }
   </mat-list>
 </div>

src/app/centers/centers-view/notes-tab/notes-tab.component.ts

@@ -1,4 +1,4 @@
-import { Component, OnInit, ViewChild } from '@angular/core';
+import { Component, OnInit, ViewChild, inject } from '@angular/core';
 import { UntypedFormBuilder, UntypedFormGroup, Validators, ReactiveFormsModule } from '@angular/forms';
 import { MatDialog } from '@angular/material/dialog';
 import { ActivatedRoute } from '@angular/router';
@@ -31,20 +31,20 @@ import { STANDALONE_SHARED_IMPORTS } from 'app/standalone-shared.module';
   ]
 })
 export class NotesTabComponent implements OnInit {
+  private route = inject(ActivatedRoute);
+  private formBuilder = inject(UntypedFormBuilder);
+  private centersService = inject(CentersService);
+  private authenticationService = inject(AuthenticationService);
+  private dialog = inject(MatDialog);
+  private translateService = inject(TranslateService);
+
   centerId: string;
   username: string;
   centerNotes: any;
   noteForm: UntypedFormGroup;
   @ViewChild('formRef', { static: true }) formRef: any;
 
-  constructor(
-    private route: ActivatedRoute,
-    private formBuilder: UntypedFormBuilder,
-    private centersService: CentersService,
-    private authenticationService: AuthenticationService,
-    private dialog: MatDialog,
-    private translateService: TranslateService
-  ) {
+  constructor() {
     const savedCredentials = this.authenticationService.getCredentials();
     this.username = savedCredentials.username;
     this.centerId = this.route.parent.snapshot.params['centerId'];