text: Title: Responsive support for echart
  Body: Thanks for the great project!
  
  "echarts" is not responsive, so I think that needs to be addressed.
  In echarts, when the resize event is fired, it seems to be enough to resize this.chart as follows.
  ```
  this.chart.resize()
  ```
  
  If possible, I would appreciate it if you could support this.
  
  reference:https://apache.github.io/echarts-handbook/en/concepts/chart-size/