chore: update to angular 21

[leonardomnds]

Hello @orizens, happy to contribute to this library.

This PR includes:

• Upgrade Angular dependencies to v21
• Update CHANGELOG.md

[badinmichal]

@orizens Hi, is it possible for you to review this PR and possibly make a release afterwards please ?

[marklagendijk]

I closed my PR #457 in favor of this one, because this one is more complete.

@orizens could you please merge and release?
Since this package explicitly lists Angular 20 as peer dependency, it blocks all users of this package from updating to Angular 21.

You could consider using a minimum version of Angular in de peer dependency spec. It will be rare for a new Angular version to break the package, so the overall experience of consumers of the package will be better if you use a minimum version instead of an explicit major version.

[softworckx]

I'm also very interested in the Angular 21 version of this library 😊

[marklagendijk]

As a temporary workaround, you can explicitly override the problematic peer dependency, by adding the following to our package.json:

  "overrides": {
    "@angular/common": "$@angular/common",
    "@angular/core": "$@angular/core"
  }

[orizens]

@leonardomnds thank you for your pr - v21 is released