feat(timeseries-chart): add percentage threshold input control (#17758)

* feat(timeseries-chart): add percentage threshold control for stack series labels

* feat: move threshold vlues to an array

* add tests for showValue, onlyTotal, and percentThreshold

* feat: add another test

* revert ChartProps typesetting, fix misnamed variable on form data type, and other minor changes

* fix percentage threshold push equation

* fix percentage threshold push equation in tests

* change default on control to match form

* attempt fix form defaults import

Co-authored-by: Corbin Robb <corbin@Corbins-MacBook-Pro.local>

superset-frontend/plugins/plugin-chart-echarts/src/Timeseries/transformers.ts

@@ -81,6 +81,7 @@ export function transformSeries(
     formatter?: NumberFormatter;
     totalStackedValues?: number[];
     showValueIndexes?: number[];
+    thresholdValues?: number[];
     richTooltip?: boolean;
   },
 ): SeriesOption | undefined {
@@ -100,6 +101,7 @@ export function transformSeries(
     formatter,
     totalStackedValues = [],
     showValueIndexes = [],
+    thresholdValues = [],
     richTooltip,
   } = opts;
   const contexts = seriesContexts[name || ''] || [];
@@ -211,8 +213,12 @@ export function transformSeries(
         } = params;
         const isSelectedLegend = currentSeries.legend === seriesName;
         if (!formatter) return numericValue;
-        if (!stack || !onlyTotal || isSelectedLegend) {
-          return formatter(numericValue);
+        if (!stack || isSelectedLegend) return formatter(numericValue);
+        if (!onlyTotal) {
+          if (numericValue >= thresholdValues[dataIndex]) {
+            return formatter(numericValue);
+          }
+          return '';
         }
         if (seriesIndex === showValueIndexes[dataIndex]) {
           return formatter(totalStackedValues[dataIndex]);