[Settings]restore window size and position (#13912)

src/settings-ui/PowerToys.Settings/Helpers/WINDOWPLACEMENT.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 System.Runtime.InteropServices;
+
+namespace PowerToys.Settings.Helpers
+{
+    [Serializable]
+    [StructLayout(LayoutKind.Sequential)]
+    [System.Diagnostics.CodeAnalysis.SuppressMessage("Performance", "CA1815:Override equals and operator equals on value types", Justification = "Interop")]
+    public struct WINDOWPLACEMENT
+    {
+        public int Length { get; set; }
+
+        public int Flags { get; set; }
+
+        public int ShowCmd { get; set; }
+
+        public POINT MinPosition { get; set; }
+
+        public POINT MaxPosition { get; set; }
+
+        public RECT NormalPosition { get; set; }
+    }
+}