Cube Query Rendering - Document available visualization options

Problem to solve

Customers would find it helpful to know how visualizations can be configured.

We've built several visualizations, each type should be documented along with the options that can be defined and used to customize the visualization.

Proposal

1. Update the documentation

Implementation plan

Add a section to the Product Analytics user documentation that:

• Link to the ECharts documented options available for chart visualizations.
• Shows the available options for SingleStat type visualizations. Currently just decimalPlaces: Number, default 0.
• Explains there are no options available for DataTable type visualizations.
• Provides an example of a typical chart visualizations options object as seen below.

  "options": {
    "xAxis": {
      "name": "Time",
      "type": "time"
    },
    "yAxis": {
      "name": "Counts",
      "type": "time"
    }
  }