Tweaks for JSON loading, minor refactor of unit tests

PkmnLib.Tests/Integration/IntegrationTestRunner.cs

@@ -15,6 +15,8 @@ public class IntegrationTestRunner
         var serializerOptions = new JsonSerializerOptions
         {
             PropertyNameCaseInsensitive = true,
+            AllowTrailingCommas = true,
+            ReadCommentHandling = JsonCommentHandling.Skip,
         };
         foreach (var file in files)
         {

PkmnLib.Tests/Integration/Models/IntegrationTestModel.cs

@@ -6,6 +6,12 @@ public class IntegrationTestModel
     public string Description { get; set; } = null!;
     public IntegrationTestBattleSetup BattleSetup { get; set; } = null!;
     public IntegrationTestAction[] Actions { get; set; } = null!;
+
+    /// <inheritdoc />
+    public override string ToString()
+    {
+        return Name;
+    }
 }
 
 public class IntegrationTestBattleSetup