Refactor svelte frontend

- Adapt to new metricConfig logic
- Footprint-Metrics generalized for bar card
- Footprint-Metrics in stats filter and sorting
- Frontend always uses GQL, except adminOptions
- Job View will load scopes for all metrics on request

api/schema.graphqls

@@ -272,6 +272,7 @@ input JobFilter {
 
 input OrderByInput {
   field: String!
+  type: String!,
   order: SortDirectionEnum! = ASC
 }
 
@@ -319,6 +320,7 @@ type HistoPoint {
 type MetricHistoPoints {
   metric: String!
   unit: String!
+  stat: String
   data: [MetricHistoPoint!]
 }