Merge pull request #754 from hargata/Hargata/752.2

Fixed naming policy.

Helper/StaticHelper.cs

@@ -626,6 +626,7 @@ namespace CarCareTracker.Helper
         public static JsonSerializerOptions GetInvariantOption()
         {
             var serializerOption = new JsonSerializerOptions();
+            serializerOption.PropertyNamingPolicy = JsonNamingPolicy.CamelCase;
             serializerOption.Converters.Add(new InvariantConverter());
             return serializerOption;
         }

Models/Shared/ImportModel.cs

@@ -99,6 +99,7 @@ namespace CarCareTracker.Models
         public string FuelConsumed { get; set; }
         [JsonConverter(typeof(FromDecimalOptional))]
         public string Cost { get; set; }
+        [JsonConverter(typeof(FromDecimalOptional))]
         public string FuelEconomy { get; set; }
         [JsonConverter(typeof(FromBoolOptional))]
         public string IsFillToFull { get; set; }