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/custom-dialogs/view-signature-dialog/view-signature-dialog.component.html

@@ -1,19 +1,27 @@
 <h1 mat-dialog-title>{{ 'labels.heading.View Client Signature' | translate }}</h1>
 
-<div *ngIf="signatureId" mat-dialog-content>
-  <img [src]="signatureImage" alt="Signature" />
-</div>
+@if (signatureId) {
+  <div mat-dialog-content>
+    <img [src]="signatureImage" alt="Signature" />
+  </div>
+}
 
-<div *ngIf="!signatureId" mat-dialog-content>
-  <p>{{ 'labels.text.Client Signature is not provided.' | translate }}</p>
-</div>
+@if (!signatureId) {
+  <div mat-dialog-content>
+    <p>{{ 'labels.text.Client Signature is not provided.' | translate }}</p>
+  </div>
+}
 
 <mat-dialog-actions align="end">
   <button mat-raised-button mat-dialog-close>{{ 'labels.buttons.Close' | translate }}</button>
-  <button mat-raised-button *ngIf="signatureId" color="warn" [mat-dialog-close]="{ delete: true }">
-    {{ 'labels.buttons.Delete' | translate }}
-  </button>
-  <button mat-raised-button *ngIf="!signatureId" color="primary" [mat-dialog-close]="{ upload: true }">
-    {{ 'labels.buttons.Upload' | translate }}
-  </button>
+  @if (signatureId) {
+    <button mat-raised-button color="warn" [mat-dialog-close]="{ delete: true }">
+      {{ 'labels.buttons.Delete' | translate }}
+    </button>
+  }
+  @if (!signatureId) {
+    <button mat-raised-button color="primary" [mat-dialog-close]="{ upload: true }">
+      {{ 'labels.buttons.Upload' | translate }}
+    </button>
+  }
 </mat-dialog-actions>

src/app/clients/clients-view/custom-dialogs/view-signature-dialog/view-signature-dialog.component.ts

@@ -1,5 +1,5 @@
 /** Angular Imports */
-import { Component, Inject, OnInit } from '@angular/core';
+import { Component, OnInit, inject } from '@angular/core';
 import {
   MatDialogRef,
   MAT_DIALOG_DATA,
@@ -35,6 +35,14 @@ import { STANDALONE_SHARED_IMPORTS } from 'app/standalone-shared.module';
   ]
 })
 export class ViewSignatureDialogComponent implements OnInit {
+  dialogRef = inject<MatDialogRef<ViewSignatureDialogComponent>>(MatDialogRef);
+  private clientsService = inject(ClientsService);
+  private sanitizer = inject(DomSanitizer);
+  data = inject<{
+    documents: any[];
+    id: string;
+  }>(MAT_DIALOG_DATA);
+
   /** Id of client signature in documents */
   signatureId: any;
   /** Signature Image */
@@ -46,12 +54,7 @@ export class ViewSignatureDialogComponent implements OnInit {
    * @param {MatDialogRef} dialogRef Component reference to dialog.
    * @param {any} data Documents data
    */
-  constructor(
-    public dialogRef: MatDialogRef<ViewSignatureDialogComponent>,
-    private clientsService: ClientsService,
-    private sanitizer: DomSanitizer,
-    @Inject(MAT_DIALOG_DATA) public data: { documents: any[]; id: string }
-  ) {
+  constructor() {
     const signature = this.data.documents.find((document: any) => document.name === 'clientSignature') || {};
     this.signatureId = signature.id;
     this.clientId = this.data.id;