added Fancy Zones Settings (#2161)

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

@@ -3,14 +3,21 @@
 // See the LICENSE file in the project root for more information.
 
 using System.Text.Json;
+using System.Text.Json.Serialization;
 
 namespace Microsoft.PowerToys.Settings.UI.Lib
 {
     // Represents the configuration property of the settings that store Integer type.
     public class IntProperty
     {
+        public IntProperty()
+        {
+            this.Value = 0;
+        }
+
         // Gets or sets the integer value of the settings configuration.
-        public int value { get; set; }
+        [JsonPropertyName("value")]
+        public int Value { get; set; }
 
         // Returns a JSON version of the class settings configuration class.
         public override string ToString()