[MeasureTool]Add setting to specify the default measure style (#25645)

* MeasureTool: Add possibility to specify the default measure style

* MeasureTool: Improve description of user setting

* MeasureTool: Use enum value instead of magic number

src/modules/MeasureTool/MeasureToolUI/Settings.cs

@@ -0,0 +1,30 @@
+// 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.IO;
+using Microsoft.PowerToys.Settings.UI.Library;
+using Settings.UI.Library.Enumerations;
+
+namespace MeasureToolUI
+{
+    public sealed class Settings
+    {
+        private static readonly SettingsUtils ModuleSettings = new();
+
+        public MeasureToolMeasureStyle DefaultMeasureStyle
+        {
+            get
+            {
+                try
+                {
+                    return (MeasureToolMeasureStyle)ModuleSettings.GetSettings<MeasureToolSettings>(MeasureToolSettings.ModuleName).Properties.DefaultMeasureStyle.Value;
+                }
+                catch (FileNotFoundException)
+                {
+                    return MeasureToolMeasureStyle.None;
+                }
+            }
+        }
+    }
+}