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/theme-picker/theme-picker.component.html

@@ -4,19 +4,18 @@
 
 <mat-menu class="mifosx-theme-picker-menu" #themeMenu="matMenu" x-position="before">
   <mat-grid-list cols="2">
-    <mat-grid-tile *ngFor="let theme of themes">
-      <div mat-menu-item (click)="installTheme(theme)">
-        <div class="mifosx-theme-picker-swatch">
-          <fa-icon
-            class="mifosx-theme-chosen-icon"
-            *ngIf="currentTheme.href === theme.href"
-            icon="check-circle"
-            size="lg"
-          ></fa-icon>
-          <div class="mifosx-theme-picker-primary" [style.background]="theme.primary"></div>
-          <div class="mifosx-theme-picker-accent" [style.background]="theme.accent"></div>
+    @for (theme of themes; track theme) {
+      <mat-grid-tile>
+        <div mat-menu-item (click)="installTheme(theme)">
+          <div class="mifosx-theme-picker-swatch">
+            @if (currentTheme.href === theme.href) {
+              <fa-icon class="mifosx-theme-chosen-icon" icon="check-circle" size="lg"></fa-icon>
+            }
+            <div class="mifosx-theme-picker-primary" [style.background]="theme.primary"></div>
+            <div class="mifosx-theme-picker-accent" [style.background]="theme.accent"></div>
+          </div>
         </div>
-      </div>
-    </mat-grid-tile>
+      </mat-grid-tile>
+    }
   </mat-grid-list>
 </mat-menu>

src/app/shared/theme-picker/theme-picker.component.ts

@@ -1,5 +1,5 @@
 /** Angular Imports */
-import { Component, OnInit, ViewEncapsulation } from '@angular/core';
+import { Component, OnInit, ViewEncapsulation, inject } from '@angular/core';
 
 /** Custom Model */
 import { Theme } from './theme.model';
@@ -36,6 +36,8 @@ import { STANDALONE_SHARED_IMPORTS } from 'app/standalone-shared.module';
   ]
 })
 export class ThemePickerComponent implements OnInit {
+  themeStorageService = inject(ThemeStorageService);
+
   /** Default theme for the application. */
   currentTheme: Theme = {
     href: 'denim-yellowgreen.css',
@@ -79,11 +81,6 @@ export class ThemePickerComponent implements OnInit {
     }
   ];
 
-  /**
-   * @param {ThemeStorageService} themeStorageService Theme Storage Service.
-   */
-  constructor(public themeStorageService: ThemeStorageService) {}
-
   /**
    * Initializes the theme for the application.
    */

src/app/shared/theme-picker/theme-storage.service.ts

@@ -1,4 +1,4 @@
-import { Injectable, EventEmitter } from '@angular/core';
+import { Injectable, EventEmitter, inject } from '@angular/core';
 import { Theme } from './theme.model';
 import { ThemeManagerService } from './theme-manager.service';
 
@@ -6,10 +6,12 @@ import { ThemeManagerService } from './theme-manager.service';
   providedIn: 'root'
 })
 export class ThemeStorageService {
+  themeManagerService = inject(ThemeManagerService);
+
   private themeStorageKey = 'mifosXTheme';
   onThemeUpdate: EventEmitter<Theme>;
 
-  constructor(public themeManagerService: ThemeManagerService) {
+  constructor() {
     this.onThemeUpdate = new EventEmitter<Theme>();
   }