Adds `existing` to the install chart component ref so that charts (service in this case) can make assumptions based on presense of chart for upgrade scnearios
I didn't use mode check to do this because existing shows us if we actually have a chart in place not just a query param.
rancher/dashboard#1557
* rename and reorg monitoring config sections
* Disable aggregate roles if userRoles.create is false
* remove docker/minikube support for cluster selector for mon v2
* fix default chart values based on cluster type in monitoring v2
* set default request and limit values for k3s higher
* Add resource limit subheading
* update default storage spec for prometheus persistant storage
* persistant storage fixes
* AlertManager -> Alertmanager
* move giant infobox to hover tooltip
* fix use existing secret logic to clean up old sec selection
* Filter additional secrets by namespace
* fixup existing secret logic and auto-select if exists
* Use match expression for selection on prom storage config
Westly Wright
Westly Wright