Add path to obtain logout_token as logged in user

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public function logoutToken(Request $request
Should be typehinted

This will need test coverage.
Also will need a change record to announce the new route.

Would it make sense to just return the token value as text (similar to the response from /session/token) instead of as a json object?

In the meantime see: https://www.drupal.org/project/logout_token →