KAM route URL link should bring you to more meaningful content

Gerald says that if you hit the kam route URL, eg https://kam-openshift-gitops.apps.home.ocplab.com/, it shows a RHEL page.

Shoubhik referenced:
https://github.com/redhat-developer/gitops-operator/blob/master/pkg/controller/gitopsservice/kam.go#L194

I saw an issue from the topology view for openshift-gitops, there are URL links from the kam and cluster deployments. You can see the routes link from their detailed "Resources" page. They don't lead you to anything meaningful too. (Or don't show them). eg. For the kam link, it should bring you to a page where you can download the kam cli

Based on Slack discussion.  We should offer consistent user experience as downloading helm, tkn, odo.  All of them are links to OpenShift mirror.   Linking to OpenShift mirror allows users to download the most recent kam release or an older release on the mirror.