JWT Authentication: Add support for specifying groups in auth.jwt for teamsync (#82175)

* merge JSON search logic

* document public methods

* improve test coverage

* use separate JWT setting struct

* correct use of cfg.JWTAuth

* add group tests

* fix DynMap typing

* add settings to default ini

* add groups option to devenv path

* fix test

* lint

* revert jwt-proxy change

* remove redundant check

* fix parallel test

pkg/services/authn/authnimpl/usage_stats.go

@@ -15,7 +15,7 @@ func (s *Service) getUsageStats(ctx context.Context) (map[string]any, error) {
 	authTypes["ldap"] = s.cfg.LDAPAuthEnabled
 	authTypes["auth_proxy"] = s.cfg.AuthProxyEnabled
 	authTypes["anonymous"] = s.cfg.AnonymousEnabled
-	authTypes["jwt"] = s.cfg.JWTAuthEnabled
+	authTypes["jwt"] = s.cfg.JWTAuth.Enabled
 	authTypes["grafana_password"] = !s.cfg.DisableLogin
 	authTypes["login_form"] = !s.cfg.DisableLoginForm