New: Artist genres on artist details page

Closes #2507

Co-Authored-By: Mark McDowall <markus101@users.noreply.github.com>

frontend/src/Components/HeartRating.js

@@ -6,7 +6,7 @@ import styles from './HeartRating.css';
 
 function HeartRating({ rating, iconSize }) {
   return (
-    <span>
+    <span className={styles.rating}>
       <Icon
         className={styles.heart}
         name={icons.HEART}