feat: upgrade to Angular 19

[philenius]

Upgrade to Angular 19 as requested in #33

[Copilot]

Pull Request Overview

This pull request upgrades the application to Angular 19 and updates supporting dependencies and configuration files.

• Upgrade Angular framework dependencies and CLI versions in package.json and angular.json.
• Update bootstrap CDN URL and integrity hash in index.html.
• Migrate components to standalone mode and adjust module and test configurations accordingly.

Reviewed Changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/index.html	Updated bootstrap version and integrity attribute.
src/app/app.config.ts	Minor formatting update with a trailing comma added in the providers.
src/app/app.component.html	Modified array reversal in template to avoid mutating original array.
projects/ngx-annotate-text/src/lib/ngx-annotate-text.module.ts	Transitioned component declarations to standalone component imports.
projects/ngx-annotate-text/src/lib/components/ngx-annotate-text/ngx-annotate-text.component.ts	Converted component to standalone with proper imports.
projects/ngx-annotate-text/src/lib/components/ngx-annotate-text/ngx-annotate-text.component.spec.ts	Updated spec configuration with standalone components.
projects/ngx-annotate-text/src/lib/components/annotation-renderer/annotation-renderer.components.ts	Marked component as standalone.
projects/ngx-annotate-text/src/lib/components/annotation-renderer/annotation-renderer.component.spec.ts	Updated spec configuration with standalone component import.
projects/ngx-annotate-text/src/lib/components/annotation-renderer/annotation-renderer.component.html	Adopted Angular’s new template syntax for conditionals.
projects/ngx-annotate-text/package.json	Bumped dependency versions to Angular 19.
package.json	Updated root dependencies and devDependencies to Angular 19.
angular.json	Adjusted asset size thresholds.
README.md	Updated CLI commands and instructions for Angular 19.

Comments suppressed due to low confidence (2)

src/index.html:10

• Ensure that the updated Bootstrap version and its corresponding integrity hash have been verified against the official release to avoid potential mismatches.

href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.6/dist/css/bootstrap.min.css"

projects/ngx-annotate-text/src/lib/components/annotation-renderer/annotation-renderer.component.html:23

• [nitpick] Ensure consistent indentation for the @if block in the template to improve readability; consider aligning the nested markup uniformly.

@if (removable) {