Create chart demos w/ real-life examples so it's easier to see what can be done with the charts library. The content can then be used in #16587.

To do:

• Alphabet stocks https://mui.com/x/react-charts/quickstart/#composable-charts
• Population Pyramid for South Korea in 2022 [charts] Add population pyramid demo #17652
• GDP vs. HDI (Human Development Index) scatter chart
• Big mac index
• Diverging bar chart, similar to https://www.datylon.com/resources/chart-library/diverging-bar-chart and https://www.ag-grid.com/charts/gallery/stacked-horizontal-bar/
• Make sure Population pyramid can be found with "bar with negative stack" like https://www.highcharts.com/demo/highcharts/bar-negative-stack and probably with a diverging bar chart too https://mui.com/x/react-charts/bar-demo/#population-pyramid.
• The www.npmjs.com weekly downloads charts as a sparkline
• The github contributors dashboard for zoom preview and callback
• The unemployment rate with recession area highlighted