added stylecop (#1933)

* added stylecop

* removed xml documentation

* used common stylecop file

src/core/Microsoft.PowerToys.Settings.UI.Lib/IntProperty.cs

@@ -0,0 +1,21 @@
+// Copyright (c) Microsoft Corporation
+// The Microsoft Corporation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System.Text.Json;
+
+namespace Microsoft.PowerToys.Settings.UI.Lib
+{
+    // Represents the configuration property of the settings that store Integer type.
+    public class IntProperty
+    {
+        // Gets or sets the integer value of the settings configuration.
+        public int value { get; set; }
+
+        // Returns a JSON version of the class settings configuration class.
+        public override string ToString()
+        {
+            return JsonSerializer.Serialize(this);
+        }
+    }
+}