UI: Time series chart: Improve smooth line settings.

ui-ngx/src/app/modules/home/components/widget/lib/chart/time-series-chart.models.ts

@@ -1407,9 +1407,9 @@ const createTimeSeriesChartSeries = (item: TimeSeriesChartDataItem,
         lineSettings.pointLabelPosition,
         lineSettings.pointLabelFormatter, false, darkMode);
       lineSeriesOption.step = lineSettings.step ? lineSettings.stepType : false;
-      lineSeriesOption.smooth = lineSettings.smooth;
+      lineSeriesOption.smooth = lineSettings.smooth ? 0.25 : false;
       if (lineSettings.smooth) {
-        lineSeriesOption.smoothMonotone = 'x';
+        lineSeriesOption.smoothMonotone = 'none';
       }
       lineSeriesOption.lineStyle = {
         width: lineSettings.showLine ? lineSettings.lineWidth : 0,