Add db average stats to gql, use in footprint

web/frontend/src/Job.root.svelte

@@ -47,7 +47,8 @@
             resources { hostname, hwthreads, accelerators },
             metaData,
             userData { name, email },
-            concurrentJobs { items { id, jobId }, count, listQuery }
+            concurrentJobs { items { id, jobId }, count, listQuery },
+            flopsAnyAvg, memBwAvg, loadAvg
         }
     `);