convert grafana templates to workspace level

Signed-off-by: zhu733756 <zhu733756@kubesphere.io>

pkg/simple/client/monitoring/types.go

@@ -53,6 +53,7 @@ type DashboardEntity struct {
 	GrafanaDashboardUrl     string `json:"grafanaDashboardUrl,omitempty"`
 	GrafanaDashboardContent string `json:"grafanaDashboardContent,omitempty"`
 	Description             string `json:"description,omitempty"`
+	Namespace               string `json:"namespace,omitempty"`
 }
 
 // The first element is the timestamp, the second is the metric value.