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/clients/clients-view/client-actions/close-client/close-client.component.html

@@ -15,23 +15,29 @@
             />
             <mat-datepicker-toggle matSuffix [for]="closureDatePicker"></mat-datepicker-toggle>
             <mat-datepicker #closureDatePicker></mat-datepicker>
-            <mat-error *ngIf="closeClientForm.controls.closureDate.hasError('required')">
-              {{ 'labels.inputs.Closed On Date' | translate }} {{ 'labels.commons.is' | translate }}
-              <strong>{{ 'labels.commons.required' | translate }}</strong>
-            </mat-error>
+            @if (closeClientForm.controls.closureDate.hasError('required')) {
+              <mat-error>
+                {{ 'labels.inputs.Closed On Date' | translate }} {{ 'labels.commons.is' | translate }}
+                <strong>{{ 'labels.commons.required' | translate }}</strong>
+              </mat-error>
+            }
           </mat-form-field>
 
           <mat-form-field class="flex-48">
             <mat-label>{{ 'labels.inputs.Closure Reason' | translate }}</mat-label>
             <mat-select formControlName="closureReasonId">
-              <mat-option *ngFor="let reason of closureData" [value]="reason.id">
-                {{ reason.name }}
-              </mat-option>
+              @for (reason of closureData; track reason) {
+                <mat-option [value]="reason.id">
+                  {{ reason.name }}
+                </mat-option>
+              }
             </mat-select>
-            <mat-error *ngIf="closeClientForm.controls.closureReasonId.hasError('required')">
-              {{ 'labels.inputs.Closure Reason' | translate }} {{ 'labels.commons.is' | translate }}
-              <strong>{{ 'labels.commons.required' | translate }}</strong>
-            </mat-error>
+            @if (closeClientForm.controls.closureReasonId.hasError('required')) {
+              <mat-error>
+                {{ 'labels.inputs.Closure Reason' | translate }} {{ 'labels.commons.is' | translate }}
+                <strong>{{ 'labels.commons.required' | translate }}</strong>
+              </mat-error>
+            }
           </mat-form-field>
         </div>
       </mat-card-content>