feat: initially sorting a hand by the rank value between two cards, if the...

feat: initially sorting a hand by the rank value between two cards, if the diff is non-zero, then sorting by ordering of enums

src/main/java/hepia/Deck.java

@@ -184,8 +184,12 @@ public class Deck {
 
                     int lhs = Arrays.asList(Card.getRANK_NAMES()).indexOf(name1[0]);
                     int rhs = Arrays.asList(Card.getRANK_NAMES()).indexOf(name2[0]);
+                    int diff_rank = lhs - rhs;
 
-                    return lhs - rhs;
+                    if (diff_rank != 0) {
+                        return diff_rank;
+                    }
+                    return o1.getSuit().compareTo(o2.getSuit());
                 }
             });
         }