[GUI] Update window chrome controls (#700)

src/SharpEmu.GUI/WindowMaximizeButtonState.cs

@@ -0,0 +1,9 @@
+// Copyright (C) 2026 SharpEmu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+namespace SharpEmu.GUI;
+
+internal readonly record struct WindowMaximizeButtonState(
+    string Glyph,
+    string ToolTip,
+    string AutomationName);