Gateway plugin should list the workspaces created from a custom editor definition

[azatsarynnyy]

Currently, the Gateway plugin doesn't list the workspaces created from a custom editor definition, e.g.
https://gist.githubusercontent.com/azatsarynnyy/692c7f8b795cbc2adfc745f65a5939ff/raw/0043b3fceb1315c99fb7341f08b8e0887121bad7/che-idea-server.yaml

On the screenshot below, 2 workspaces were created with a JetBrains IDE chosen on the Dashboard, and 2 two of them, which are not listed by the Gateway plugin, were created from the mentioned editor definition.

It maybe a regression after introducing redhat-developer/devspaces-gateway-plugin#185

[vrubezhny]

@azatsarynnyy What is the editor annotation (che.eclipse.org/che-editor) for such an editor?

[azatsarynnyy]

@azatsarynnyy What is the editor annotation (che.eclipse.org/che-editor) for such an editor?

the URL itself https://gist.githubusercontent.com/azatsarynnyy/692c7f8b795cbc2adfc745f65a5939ff/raw/0043b3fceb1315c99fb7341f08b8e0887121bad7/che-idea-server.yaml