fix(chart): align legend with chart grid in List mode for Top/Bottom orientations

Author: richardfogaca

superset-frontend/plugins/plugin-chart-echarts/src/controls.tsx

@@ -67,7 +67,7 @@ const legendTypeControl: ControlSetItem = {
     label: t('Type'),
     choices: [
       ['scroll', t('Scroll')],
-      ['plain', t('Plain')],
+      ['plain', t('List')],
     ],
     default: legendType,
     renderTrigger: true,

superset-frontend/plugins/plugin-chart-echarts/src/utils/series.ts

@@ -482,8 +482,14 @@ export function getLegendProps(
       break;
     case LegendOrientation.Bottom:
       legend.bottom = 0;
+      if (padding?.left) {
+        legend.left = padding.left;
+      }
       break;
     case LegendOrientation.Top:
+      if (padding?.left) {
+        legend.left = padding.left;
+      }
     default:
       legend.top = 0;
       legend.right = zoomable ? TIMESERIES_CONSTANTS.legendTopRightOffset : 0;