Mouse Follower
A circle follows the mouse cursor across an SVG canvas. The example demonstrates React state management and event handling by updating the circle's center coordinates in response to mouse movement. It uses React 16.9 with hooks like `useState`, `useCallback`, and `useEffect` to track and render the cursor position as SVG elements. The project is built with the React DOM renderer and is initialized through an HTML file that loads both React and the compiled bundle.