[chart.js] Add weight property to ChartDataSets interface for Doughnut/Pie charts. (#40200)
[chart.js] Add weight property to ChartDataSets interface for Doughnut/Pie charts. (#40200)

* [chart.js] Add weight property to the ChartDataSets interface for Doughnut/Pie charts.

* [chart.js] Run prettier on index.d.ts file.

* [chart.js] Remove all prettier formmating changes.

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