[FindMyMouse]Add Win+Ctrl double press option (#32802)

* [FindMyMouse] Add Win+Ctrl double press option

* use includeWinKey default const in SuperSonar

* Add some comments regarding the bitmask

* Fix XAML style

src/settings-ui/Settings.UI/Converters/IndexBitFieldToVisibilityConverter.cs

@@ -0,0 +1,27 @@
+// 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;
+using Microsoft.UI.Xaml;
+using Microsoft.UI.Xaml.Data;
+
+namespace Microsoft.PowerToys.Settings.UI.Converters
+{
+    public sealed class IndexBitFieldToVisibilityConverter : IValueConverter
+    {
+        // Receives a hexadecimal bit mask as a parameter. Will check the value against that bitmask.
+        public object Convert(object value, Type targetType, object parameter, string language)
+        {
+            var currentIndexBit = 1 << (int)value;
+            var selectedIndicesBitField = System.Convert.ToUInt32(parameter as string, 16);
+
+            return (selectedIndicesBitField & currentIndexBit) == 0 ? Visibility.Collapsed : Visibility.Visible;
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, string language)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}