Bug 1760810

Cause: In Overview, we are consuming sidebar resources via extension utils and first check is if knative CRDs are present then check is based on the key as in knative specific resources "configurations" and in current code, issue was even if knative resources were not present but utils returned { configurations: [] }. The non-admin user won't even be able to view workloads under-console as firehose fetches knative specific resources and results in 403 Consequence: For kubeadmin in case of normal deployments and as in sidebar it identifies configurations and knative operator is installed so treated it as knative resource i.e configurations, Revisions, routes. For the non-admin user, it shows Permission issue if user tries to view workloads in console Fix: with added check in case of no configurations found will return undefined, so will not add any knative specific resources in overviewitems. For fetching resources via firehose add key "option:true" to make it non required Result: Overview sidebar resources work as expected in case of normal deployment and knative specific deployment. A non-admin user can view the workloads.