add nb_sys column

components/content/StructureDb.vue

@@ -9,6 +9,8 @@ const headers: Ref<Object[]> = ref([
     { title: "System", key: "system" },
     { title: "Proteins in structure", key: 'proteins_in_the_prediction', sortable: false },
     { title: "System genes", key: "system_genes", sortable: false },
+    { title: "Sys id", key: "nb_sys" },
+
     { title: "Completed", key: "completed" },
     { title: "Predition type", key: "prediction_type" },
     { title: "Num of genes", key: "system_number_of_genes" },