update getAssignedCardSortKey method description

Author: cosmicvulpes

src/libs/CardUtils.ts

@@ -37,8 +37,13 @@ function getMonthFromExpirationDateString(expirationDateString: string) {
 }
 
 /**
- * Ensure to sort physical Expensify cards first, no matter what their cardIDs are. This way ensures the Expensify Combo Card detail is rendered correctly, because we will always use the cardID of the physical card from the combo card duo.
- * @param card
+ * Sorting logic for assigned cards.
+ * 
+ * Ensure to sort physical Expensify cards first, no matter what their cardIDs are.
+ * This way ensures the Expensify Combo Card detail is rendered correctly,
+ * because we will always use the cardID of the physical card from the combo card duo.
+ *
+ * @param card - card to get the sort key for
  * @returns number
  */
 function getAssignedCardSortKey(card: Card): number {