There appears to be interest from users to be able to visualize argocd application metrics provided by Gitops operator in Grafana

Upstream argocd-operator currently allows users to create a dedicated grafana instance by setting `spec.grafana.enabled` to `true` in the argo-cd CR. 
It was decided that we did not want to support this in the gitops-operator. Hence, we should investigate and propose steps/instructions detailing alternative ways for users to visualize the desired metrics using their existing grafana instances or using the community Grafana operator

Acceptance criteria:

• Create a doc detailing findings for available options to leverage Grafana to visualize gitops metrics on openshift