Bug fixes

• Fixed a bug that prevented to use a cluster as a target in API-based migrations under some circumstances

• Made sure, that in all places that reference a gateway the cluster name is used and not the name of the primary gateway within a cluster

• The environment overview on the dashboard now omits the gateways that belong to a cluster and only display the cluster

• Fixed a bug that prevented a movement of a folder (without any other changes) to be correctly replicated in the API Gateway Manager

• Fixed a bug that caused migrations to fail if a folder name contained some special characters

• Updated the metrics exporter to consistently send metrics to Prometheus even though some elements of the system are missing or other exceptions occur during post processing.