chore/update nx and angular 13

[the-ult]

• Upgrade the project to NX 13.2 with Angular 13
• Setup NX per project configuration
• Update other dependencies
• improve build targets and project tsconfig build settings

TODO (might need some help with these)

• Properly setup build targets with @nrwl/angular:package and use tsconfig.lib.prod.json configuration for production

    "configurations": {
        "production": {
          "tsConfig": "projects/testing-library/tsconfig.lib.prod.json"
        },
        "development": {
          "tsConfig": "projects/testing-library/tsconfig.lib.json"
        }
      },

• Breaking changes to README/Changelog?
• Update Node version to LTS (16?) @timdeschryver it seems to be at 12 atm.

fixes: #258

[timdeschryver]

Thanks @the-ult, I will create a beta branch for this and change the target branch later this week. This way we can test it out, and add some more breaking changes before we release the new version.

• "executor": "@nrwl/angular:package",: yes, you can update it
• Should we update the peerDependencies to >= 13.0.0: yes
• config tot Render for teardown: let's do this in another PR after this is merged
• Breaking changes to README/Changelog?: these will be automatic 🙂

[timdeschryver]

Let's get this rolling! 🥳

[github-actions]

🎉 This PR is included in version 11.0.0-beta.1 🎉

The release is available on:

• npm package (@beta dist-tag)
• GitHub release

Your semantic-release bot 📦🚀

[timdeschryver]

@all-contributors please add @the-ult for maintenance

[allcontributors]

@timdeschryver

I've put up a pull request to add @the-ult! 🎉