Fork of Smiley Face Part VI
Two nearly identical smiley faces render in red-bordered SVG canvases using React components and D3’s `arc` generator for the mouth. Each face combines `BackgroundCircle`, `Eyes`, and `Mouth` components inside a shared `FaceContainer`, with D3’s `range` imported but unused. The code demonstrates modular composition with ES6 modules, where face dimensions, eye offsets, and mouth radii are passed as props, and D3 v5 generates the path for the curved mouth.