Added max phoenix spirits to 4

TOOHUCardAPI/Data/AppSettings.cs

@@ -9,6 +9,7 @@ namespace TOOHUCardAPI.Data
         public static int PointsPerLevelNormal { get; set; }
         public static int FirstWinBonusPointsMin { get; set; }
         public static int FirstWinBonusPointsMax { get; set; }
+        public static int MaxPhoenixSpirits { get; set; }
         public static int PointsPerKey { get; set; }
         public static int MaxKeyPurchaseAmount { get; set; }
         public static string StarterDeckGroupKey { get; set; }

TOOHUCardAPI/Data/Services/StoreService.cs

@@ -49,7 +49,7 @@ namespace TOOHUCardAPI.Data.Services
         public async Task<int> ChangePowerMaxTotal(long steamId, int amt)
         {
             User user = await _userRepository.GetUser(steamId);
-            user.PowerMaxTotal = Math.Clamp(user.PowerMaxTotal + amt, 0, int.MaxValue);
+            user.PowerMaxTotal = Math.Clamp(user.PowerMaxTotal + amt, 0, AppSettings.MaxPhoenixSpirits);
             await _userRepository.UpdateUser(user);
             _logger.LogInformation("User {SteamId} changed the number of MaxPower items they had by {Amount}", user.SteamId, amt);
             return user.PowerMaxTotal;