Fork of Smiley Face Part V
A modular React component builds a smiling face from separate SVG elements, including a yellow circle, two eyes, and a curved mouth. The code splits these into individual files using ES6 modules, with React Fragments grouping the eye shapes. A single `Face` component accepts configurable props for dimensions, positioning, and stroke widths. The example renders multiple copies of the face by mapping over an array, using `d3.arc` to generate the mouth path and `react-dom` to mount the composition into the DOM.