Fork of Smiley Face Part II
A grid of small, randomized smiley faces is rendered as SVGs using React components. Each face is composed of separate React components for the yellow background circle, eyes, and a mouth drawn with a d3.arc path. The `d3.range` function generates 18 instances, each with randomized stroke widths, eye offsets and radii, and mouth dimensions, producing a playful array of varied expressions.