Shorten shortenNumber code

src/utils/shorten-number.jsx

@@ -1,7 +1,5 @@
 const { locale } = Intl.NumberFormat().resolvedOptions();
-
-export default function shortenNumber(num) {
-  return Intl.NumberFormat(locale, {
-    notation: 'compact',
-  }).format(num);
-}
+const shortenNumber = Intl.NumberFormat(locale, {
+  notation: 'compact',
+}).format;
+export default shortenNumber;