Improve charts

[djerfy]

Hi,

It's an idea to improve charts, replacement from ngx-charts to ngx-echarts. With a draggable chart for partials (https://xieziyu.github.io/ngx-echarts/#/advanced/advanced-usage)

Thanks

[djerfy]

I close this issue. Option timeline is available in ngx-charts module.

Reference:

• https://swimlane.gitbook.io/ngx-charts/examples/line-area-charts/area-chart#inputs