Windows: Also extend client frame when running on Windows 11

Fixes #300

windows/src/main/cpp/Decorations.cpp

@@ -1,7 +1,7 @@
 /*
  * MIT License
  *
- * Copyright (c) 2019-2021 Jannis Weis
+ * Copyright (c) 2019-2022 Jannis Weis
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
  * associated documentation files (the "Software"), to deal in the Software without restriction,
@@ -322,14 +322,12 @@ static bool InstallDecorations(HWND handle, bool is_popup) {
     if (it != wrapper_map.end()) return false;
 
     SetupWindowStyle(handle);
-    if (is_popup || !is_windows_11) {
     ExtendClientFrame(handle);
     if (is_popup) {
         auto attribute = DWMWINDOWATTRIBUTE::DWMWA_WINDOW_CORNER_PREFERENCE;
         auto preference = DWM_WINDOW_CORNER_PREFERENCE::DWMWCP_ROUNDSMALL;
         DwmSetWindowAttribute(handle, attribute, &preference, sizeof(preference));
     }
-    }
 
     WNDPROC proc = reinterpret_cast<WNDPROC>(GetWindowLongPtr(handle, GWLP_WNDPROC));