Update to Angular 20

[Klaster1]

No description provided.

[Copilot]

Pull Request Overview

This PR updates the project to Angular 20 by revising component file references, import paths, and dependency versions.

• Removed the redundant ".component" suffix from component template and style file references.
• Updated Angular dependencies and related package metadata.
• Adjusted import paths for directives, pipes, and services to match new file locations.

Reviewed Changes

Copilot reviewed 66 out of 66 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
src/app/dialog-edit-session/dialog-edit-session.ts	Updated template and style file paths and imports.
src/app/dialog-create-task/dialog-create-task.ts	Updated template and style file paths.
src/app/button-theme-switcher/button-theme-switcher.ts	Updated template and style file paths.
src/app/button-task-actions/button-task-actions.ts	Adjusted import order and file path changes for templates/styles.
src/app/button-task-actions/button-task-actions.html	Added new Angular HTML template using Angular 17 syntax.
src/app/button-task-actions/button-task-actions.component.html	Removed unused component template file.
src/app/app.ts	Updated template, style paths and import paths for various components.
package.json	Upgraded Angular and dependency versions; added repository and author metadata.
angular.json	Added schematics configuration for components, directives, and services.

Comments suppressed due to low confidence (3)

src/app/dialog-edit-session/dialog-edit-session.ts:15

• Angular expects the property 'styleUrls' (plural) with an array of style files. Please update this to 'styleUrls: ['./dialog-edit-session.scss']'.

styleUrl: './dialog-edit-session.scss',

src/app/dialog-create-task/dialog-create-task.ts:12

• Update 'styleUrl' to 'styleUrls' in the component decorator and wrap the style file path in an array.

styleUrl: './dialog-create-task.scss',

src/app/button-theme-switcher/button-theme-switcher.ts:13

• Change 'styleUrl' to 'styleUrls' and enclose the style file path within an array to comply with Angular Component decorator requirements.

templateUrl: './button-theme-switcher.html',
  styleUrl: './button-theme-switcher.scss',

[Klaster1]

Closes #40