subcluster in metricSelect, add infobox to systems

- Default: Show Clusters next to Metrics
- New: If Cluster filter activem show subclusters instead (reactive)
- add note to analysis view
- systems view now with info boxes if metric is removed for subcluster

internal/graph/schema.resolvers.go

@@ -269,7 +269,7 @@ func (r *queryResolver) NodeMetrics(ctx context.Context, cluster string, nodes [
 			for _, scopedMetric := range scopedMetrics {
 				host.Metrics = append(host.Metrics, &model.JobMetricWithName{
 					Name:   metric,
-					Scope:  schema.MetricScopeNode, // NodeMetrics allow fixed scope?
+					Scope:  schema.MetricScopeNode,
 					Metric: scopedMetric,
 				})
 			}