build: update to Angular v19

Author: L-X-T

README.md

@@ -22,12 +22,14 @@ Support for OAuth 2 and OpenId Connect (OIDC) in Angular. Already prepared for t
 
 Successfully tested with **Angular 4.3 to Angular 16** and its Router, PathLocationStrategy as well as HashLocationStrategy and CommonJS-Bundling via webpack.
 
-At server side we've used **IdentityServer** (.NET / .NET Core), Redhat's **Keycloak** (Java), and **Auth0** (Auth0 is officially supported since version 10 of this lib). For Auth0, please have a look into the respective documentation page here.
+On the server-side we've used **IdentityServer** (.NET / .NET Core), Redhat's **Keycloak** (Java), and **Auth0** (Auth0 is officially supported since version 10 of this lib). For Auth0, please have a look into the respective documentation page here.
 
 For using this library with **Azure Active Directory** (**Azure AD**), we recommend an additional look to this [blog post](https://dev.to/yuriburger/azure-active-directory-b2c-with-pkce-for-your-angular-app-1dcg) and the example linked at the end of this blog post.
 
 Also, the Okta community created some guidelines on how to use this lib with Okta. See the links at the end of this page for more information.
 
+**Angular 19**: Use 19.x versions of this library (**should also work with older Angular versions!**).
+
 **Angular 18**: Use 18.x versions of this library (**should also work with older Angular versions!**).
 
 **Angular 17**: Use 17.x versions of this library (**should also work with older Angular versions!**).