Controllers View: Cloud/Region should be notated

[opax7]

In order to have more comprehensive context
As an Operator
I want the Cloud / Region that my controller is deployed in to be notated on the Controllers view

I am often curious as to what region my Controller is deployed to as I am usually working with various different controllers at any given time. The resource group naming convention used for Juju components in the cloud are not very indicative of what they are actually serving, other than "juju-controller" or "juju-". Knowing which region the controller I am working on just gives me more data points to cross reference when I need to navigate multiple controllers.