D3 Bar Chart
This bar chart displays the number of contributions per author from a local CSV file, with values multiplied by 1,000 for scaling. The visualization uses D3 v5 to load the data, apply a linear scale for the x-axis and a band scale for the y-axis, and render steel-blue bars in an SVG. Axes are added using `axisLeft` and `axisBottom`, while styling is handled through an external stylesheet.