Move app label for OpsLevel

Move this into the deployment/statefulset spec, where OpsLevel expects
to see it. See also[1]

[1] utilitywarehouse/kafka-manifests#61

Ticket: DENA-480

components/opslevel/kustomization.yaml

@@ -13,7 +13,7 @@ patches:
         value: "true"
       # add 'app' label for autogenerated links (metrics, etc.)
       - op: copy
-        path: /metadata/labels/app
+        path: /spec/template/metadata/labels/app
         from: /metadata/name
   - target:
       version: v1