Cluster Settings page changes

If the Infrastructure.Status.ControlPlaneTopology is set to 'External', the console-operator will pass this information via the console-config.yaml co the console. Console pod will get re-deployed and will store the topology mode information as a SERVER_FLAG. Based on that value we need surface a message that the control plane is externally managed and add following changes:

• Remove update button
• Make channel read only
• Link out to read only CV details page
• Remove the ability to edit upstream configuration
• Remove the cluster autoscaler field
• Add an alert to the page so that users know the control plane is externally managed

In general, anything that changes a cluster version should be read only.

Check section 02 for more info: https://docs.google.com/document/d/1k76JtRRHBdCCEjHPqKcYvbNVsuaGmRhWDLESWIm0mbo/edit#