TimeSeries/BarChart: Add support for sorting series in the tooltip (#43615)

* TimeSeries panel: Add support for sorting series in the tooltip

* Fix cue tests

* Make sortValues work with string values

* Sort values in DatHoverView and remove sort index from TooltipPlugin

* Rename sortOrder prop to sort

* DataHoverView - use raw values for sorting

public/app/plugins/panel/histogram/models.gen.ts

@@ -10,6 +10,7 @@ import {
   TooltipDisplayMode,
   GraphGradientMode,
   HideableFieldConfig,
+  SortOrder,
 } from '@grafana/schema';
 
 export const modelVersion = Object.freeze([1, 0]);
@@ -29,6 +30,7 @@ export const defaultPanelOptions: PanelOptions = {
   },
   tooltip: {
     mode: TooltipDisplayMode.Multi,
+    sort: SortOrder.None,
   },
 };