message: add new plugin
diff: @@ -62,6 +62,7 @@ import {
  EchartsRadarChartPlugin,
  EchartsFunnelChartPlugin,
  EchartsMixedTimeseriesChartPlugin,
  + EchartsTreeChartPlugin,
  } from '@superset-ui/plugin-chart-echarts';
  import {
  SelectFilterPlugin,
  @@ -133,6 +134,7 @@ export default class MainPreset extends Preset {
  new TimeColumnFilterPlugin().configure({ key: 'filter_timecolumn' }),
  new TimeGrainFilterPlugin().configure({ key: 'filter_timegrain' }),
  new GroupByFilterPlugin().configure({ key: 'filter_groupby' }),
  + new EchartsTreeChartPlugin().configure({ key: 'tree_chart' }),
  ],
  });
  }
  