Canvas 컴포넌트 추가

+import React, { useCallback, useEffect, useRef, useState } from 'react';
+import { Vector } from './types';
+
+export const Canvas: React.FC = () => {
+  const canvasRef = useRef<HTMLCanvasElement>(null);
+
+  return (
+    <div className='mx-3 px-2 py-1 rounded shadow'>
+      <canvas ref={canvasRef} width='512' height='384' />
+    </div>
+  );
+}
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