Use VampireFangs instead of flat 2 damage

Assets/Battle/CardsMonsters/VampireFangsMCard.cs

@@ -2,9 +2,9 @@
 using System.Collections.Generic;
 using UnityEngine;
 
-public class MCardVampireFangs : MonsterCard
+public class VampireFangsMCard : MonsterCard
 {
-    public MCardVampireFangs(BattleParticipant owner)
+    public VampireFangsMCard(BattleParticipant owner)
         : base(owner, MCardId.VampireFangs, "VampireFangs", 2, CardType.Attack,
             "Steals 2 HP from target.") {
     }