[Operator] PodStatus diagram is misleading users when cluster is shut down

When user triggers graceful shutdown by setting replicas to 0 PodStatus diagram always shows 1 stopped. There are several issues with that:

• There is no stopped status for pod
• There is no DataGrid pod existing at all in any state
• The color used for showing "stopped" pod is the same as the color for running pods and user needs to hover over the diagram to find out that "1 pod is stopped"

Expected behavior would be showing 0 pods running