Fix stats multipliers not saving

Assets/Scripts/StatsManager.cs

@@ -113,6 +113,7 @@ public class StatsManager : MonoBehaviour
         enemyStats.healthMultiplier = upgrades[UpgradeTypes.ENEMY_HEALTH].GetTotalEffectMultiplier();
         enemyStats.damageMultiplier = upgrades[UpgradeTypes.ENEMY_DAMAGE].GetTotalEffectMultiplier();
         enemyStats.armorMultiplier = upgrades[UpgradeTypes.ENEMY_ARMOR].GetTotalEffectMultiplier();
+        fighterStats[FighterTypes.ENEMY] = enemyStats;
     }
 
     public float GetTotalEffectMultiplier(UpgradeTypes type)