frontend: update style (fix button appearance)

frontend/src/components/ImageComponent.tsx

@@ -31,6 +31,9 @@ export const ImageComponent = React.memo((props: ImageComponentProps) => {
 
   return (
     <div className={'imageComponent'} id={id}>
+      {process.env.NODE_ENV === 'development' && (
+        <div>Render count: {renderCount.current}</div>
+      )}
       <Card>
         <Card.Header
           onClick={() => setOpen(!open)}