Stylized Bar Chart
This stylized bar chart displays the top 10 most populous countries using data from the United Nations World Population Prospects 2019, with populations formatted in billions. It uses D3’s `scaleBand` and `scaleLinear` for axes, React with `useData` to fetch and slice the CSV data, and SVG `<rect>` elements for the bars. The chart features a Poppins font, custom tick colors, and hover tooltips via `<title>` elements, with the x-axis labeled "Population."