Where is the icon/img coming from? How did they upload it - reactjs

Question

I am relatively new to coding and helping a project upload an image to their website banner. I know how to do it when the image is directly placed into the files, but I cant seem to figure out where these images are being sourced from. How would I go about uploading a new image?
const Coinsquare: React.FC<SVGProps<SVGSVGElement>> = ({ width = '252', height = '51', ...props }) => (
<svg
width={width}
height={height}
viewBox="0 0 252 51"
fill="none"
xmlns="http://www.w3.org/2000/svg"
xmlnsXlink="http://www.w3.org/1999/xlink"
{...props}
>
<rect x="0.991934" y="-0.50179932" width="251" height="50" fill="url(#coinsquare_logo)" />
<defs>
<pattern id="coinsquare_logo" patternContentUnits="objectBoundingBox" width="1" height="1">
<use xlinkHref="#image0_207_6382" transform="translate(-0.002843) scale(0.000967006 0.00485437)" />
</pattern>
<image
id="image0_207_6382"
width="1040"
height="206"
xlinkHref="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAABBAAAADOCAYAAACHHvG8AAAAAXNSR0IArs4c6QAAAERlWElmTU0AKgAAAAgAAYdpAAQAAAABAAAAGgAAAAAAA6ABAAMAAAABAAEAAKACAAQAAAABAAAEEKADA....."
/>
</defs>
</svg>
)
export default Coinsquare