Draft: Adds Grafana Time Series plugin support

As part of gitlab-com/gl-infra/observability/team#2573.

libsonnet/grafana/time-series/panel.libsonnet

@@ -88,7 +88,7 @@ local basic(
 
     addDataLink(link)::
       self +
-      ts.panelOptions.withLinksMixin(link),
+      ts.standardOptions.withLinksMixin(link),
 
     addSeriesOverride(override)::
       self +
@@ -152,9 +152,9 @@ local basic(
         ],
       }),
 
-    addTarget(target)::
-      self +
-      ts.queryOptions.withTargets(target),
+    addTarget(target):: self {
+      targets+: [target],
+    },
   };
 
 {