This pull request upgrades the project to Angular 20 and updates several dependencies and build configurations to align with the new Angular version. It also refactors Angular templates to use the new control flow syntax (@if, @for, @else) for improved readability and performance. These changes are essential for maintaining compatibility, leveraging new Angular features, and ensuring the codebase stays up-to-date.

Framework and Dependency Upgrades

• Upgraded all Angular dependencies in package.json from version 19 to 20, including core libraries, CLI, compiler, and related packages. Also updated other dependencies such as ng2-pdfjs-viewer, ng-packagr, and @types/node to match compatibility requirements. [1] [2] [3] [4]
• Updated the Node.js version in .tool-versions from 22.12.0 to 22.20.0 to support the new Angular version.

Build Configuration Changes

• Replaced deprecated Angular build and test builders in angular.json with the new @angular/build equivalents for application, dev-server, extract-i18n, karma, and ng-packagr. [1] [2] [3] [4] [5]
• Added a schematics section to angular.json for custom component, directive, service, guard, interceptor, module, pipe, and resolver generation options.

Template Refactoring

• Refactored multiple Angular templates (e.g., base.component.html, archive-card.component.html) to use the new control flow syntax (@if, @for, @else) instead of the older *ngIf and *ngFor directives, improving code clarity and leveraging Angular 20 features. [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17]

Versioning

• Bumped the project version in package.json from 4.0.0 to 5.0.0 to reflect the major upgrades and breaking changes.