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/keyboard-shortcuts-dialog/keyboard-shortcuts-dialog.component.html

@@ -2,25 +2,33 @@
 
 <div mat-dialog-content>
   <div class="layout-column gap-2px">
-    <ng-container *ngFor="let item of buttonConfig.buttonCombinations">
+    @for (item of buttonConfig.buttonCombinations; track item) {
       <mat-divider [inset]="true"></mat-divider>
       <div class="flex-fill flex-50">
         <span class="flex-50">
-          <span *ngIf="item.ctrlKey">
-            <span class="modifier-key">{{ 'labels.inputs.Ctrl' | translate }}</span> +
-          </span>
-          <span *ngIf="item.shiftKey">
-            <span class="modifier-key">{{ 'labels.inputs.Shift' | translate }}</span> +
-          </span>
-          <span *ngIf="item.altKey">
-            <span class="modifier-key">{{ 'labels.inputs.Alt' | translate }}</span> +
-          </span>
-          <span *ngIf="item.key">
-            <span class="modifier-key">{{ item.key }}</span></span
-          >
+          @if (item.ctrlKey) {
+            <span>
+              <span class="modifier-key">{{ 'labels.inputs.Ctrl' | translate }}</span> +
+            </span>
+          }
+          @if (item.shiftKey) {
+            <span>
+              <span class="modifier-key">{{ 'labels.inputs.Shift' | translate }}</span> +
+            </span>
+          }
+          @if (item.altKey) {
+            <span>
+              <span class="modifier-key">{{ 'labels.inputs.Alt' | translate }}</span> +
+            </span>
+          }
+          @if (item.key) {
+            <span>
+              <span class="modifier-key">{{ item.key }}</span></span
+            >
+          }
         </span>
         <span class="flex-50">{{ item.title }}</span>
       </div>
-    </ng-container>
+    }
   </div>
 </div>