Add istio control plane dashboard and alert rule #1144

Job	Run time
Publish Charm / Generate the Charm Matrix	3s
Run Tests / Lint Code (pilot)	25s
Run Tests / Integration Test (1.27-strict/stable, integration)	1h 7m 24s
Run Tests / Lint Code (gateway)	20s
Run Tests / Unit Test (pilot)	37s
Run Tests / Integration Test (1.27-strict/stable, integration-tls-provider)	1h 6m 26s
Run Tests / Observability Integration Test (1.25-strict/stable)	1h 4m 21s
Run Tests / Integration Test (1.27-strict/stable, integration-tls-secret)	1h 4m 22s
Run Tests / Unit Test (gateway)	33s
Run Tests / Observability Integration Test (1.26-strict/stable)	1h 7m 45s
Run Tests / Integration Test (1.30-strict/stable, integration)	1h 9m 19s
Run Tests / Integration Test (1.30-strict/stable, integration-tls-provider)	1h 5m 55s
Run Tests / Integration Test (1.30-strict/stable, integration-tls-secret)	1h 5m 11s
Run Tests / Check libraries (istio-gateway) / Check libraries	25s
Run Tests / Check libraries (istio-gateway) / Lint	9s
Run Tests / Check libraries (istio-pilot) / Check libraries	28s
Run Tests / Check libraries (istio-pilot) / Lint	11s
Publish Charm / Publish Charm (./charms/istio-pilot)	40m 36s
Publish Charm / Publish Charm (./charms/istio-gateway)	30m 46s
	10h 5m 16s

Provide feedback