Load thumbnail images on the fly

[sehilyi]

useEffect(() => {
    if(!gosSmRef.current) return;
    console.log('here');
    setTimeout(() => {
        const { canvas } = gosSmRef.current?.api.getCanvas({ resolution: 4, transparentBackground: false });
        const url = canvas.toDataURL('image/png');
        // console.log(url);
        var image = new Image();
        image.src = url;
        document.body.appendChild(image);
    }, 1000);
}, [gosSmRef.current]);