[authentication-keycloak] Support configuration of logoutOptions

[ChristophMaskos]

Issue description

Please extend the package so that the Logout method can optionally be passed a parameter "redirectUri".

logout(options?: { redirectUri: string }) {
   const logoutOptions = options || this.#logoutOptions
   this.#keycloak.logout(logoutOptions );
}

See Keycloak-API

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[mbeckem]

This is a good suggestion. We currently already have this.#logoutOptions, but they cannot be configured. We probably left that out of the initial version.

It would probably be a good idea to support both: package level configuration for logoutOptions (for simple use cases) and an optional parameter like in your example (for advanced / dynamic redirections).

We might get to this requirement during maintenance, but we're currently focusing on technical issues like the chakra v3 update. However, pull requests are always welcome.