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/accounting/revert-transaction/revert-transaction.component.html

@@ -1,21 +1,21 @@
-<div *ngIf="!data.reverted; else reverted">
-  <h1 mat-dialog-title>{{ 'labels.heading.Revert Transaction' | translate }}</h1>
-  <div mat-dialog-content>
-    <p>{{ 'labels.text.Revert this transaction?' | translate }}</p>
-    <mat-form-field class="flex-fill">
-      <mat-label>{{ 'labels.inputs.Comments' | translate }}</mat-label>
-      <textarea matInput [formControl]="comments"></textarea>
-    </mat-form-field>
+@if (!data.reverted) {
+  <div>
+    <h1 mat-dialog-title>{{ 'labels.heading.Revert Transaction' | translate }}</h1>
+    <div mat-dialog-content>
+      <p>{{ 'labels.text.Revert this transaction?' | translate }}</p>
+      <mat-form-field class="flex-fill">
+        <mat-label>{{ 'labels.inputs.Comments' | translate }}</mat-label>
+        <textarea matInput [formControl]="comments"></textarea>
+      </mat-form-field>
+    </div>
+    <mat-dialog-actions align="end">
+      <button mat-button mat-dialog-close>{{ 'labels.buttons.No' | translate }}</button>
+      <button mat-button [mat-dialog-close]="{ revert: true, comments: comments.value }">
+        {{ 'labels.buttons.Yes' | translate }}
+      </button>
+    </mat-dialog-actions>
   </div>
-  <mat-dialog-actions align="end">
-    <button mat-button mat-dialog-close>{{ 'labels.buttons.No' | translate }}</button>
-    <button mat-button [mat-dialog-close]="{ revert: true, comments: comments.value }">
-      {{ 'labels.buttons.Yes' | translate }}
-    </button>
-  </mat-dialog-actions>
-</div>
-
-<ng-template #reverted>
+} @else {
   <h1 mat-dialog-title>{{ 'labels.heading.Transaction Reverted' | translate }}</h1>
   <div mat-dialog-content>
     <h4>{{ 'labels.heading.Success!' | translate }}</h4>
@@ -28,4 +28,4 @@
       {{ 'labels.buttons.Redirect to New Transaction' | translate }}
     </button>
   </mat-dialog-actions>
-</ng-template>
+}

src/app/accounting/revert-transaction/revert-transaction.component.ts

@@ -1,5 +1,5 @@
 /** Angular Imports */
-import { Component, Inject } from '@angular/core';
+import { Component, inject } from '@angular/core';
 import {
   MatDialogRef,
   MAT_DIALOG_DATA,
@@ -29,15 +29,9 @@ import { STANDALONE_SHARED_IMPORTS } from 'app/standalone-shared.module';
   ]
 })
 export class RevertTransactionComponent {
+  dialogRef = inject<MatDialogRef<RevertTransactionComponent>>(MatDialogRef);
+  data = inject(MAT_DIALOG_DATA);
+
   /** Comments input form control. */
   comments = new UntypedFormControl('');
-
-  /**
-   * @param {MatDialogRef} dialogRef Component reference to dialog.
-   * @param {any} data Provides comments or reverted transaction ID.
-   */
-  constructor(
-    public dialogRef: MatDialogRef<RevertTransactionComponent>,
-    @Inject(MAT_DIALOG_DATA) public data: any
-  ) {}
 }