Feature: Keycloak Angular v19 Release

[mauriciovigolo]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

[ ] Bugfix
[X] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Build related changes
[ ] CI related changes
[ ] Documentation content changes
[ ] Other... Please describe:

Description

keycloak-angular v19 introduces a complete refactor of the library, adopting a functional approach aligned with Angular's latest best practices.

Key Changes:

• Updated to Angular v19.
• Deprecated NgModules in favor of a functional approach.
• Introduced new functionalities:
  • provideKeycloak for streamlined initialization.
  • Directives, interceptors, signals, and guards for improved flexibility.
  • Keycloak Angular Features for enhanced extensibility.
• Refactored and added new examples to showcase the updated features.

Note: I'm finishing the migration document and some additional documentation on the new features.

Does this PR introduce a breaking change?

[X] Yes
[ ] No