Fix OnClose not being called on Windows. Still doesn't work correctly on Linux (Are we handling the XEvent?)

src/platform/windows/Window.cpp

@@ -30,8 +30,9 @@ LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
     auto* window = reinterpret_cast<RWindow*>( GetWindowLongPtr(hwnd, GWLP_USERDATA) );
     switch (uMsg) {
             case WM_CLOSE: {
-                DestroyWindow(hwnd);
                 window->processOnClose();
+                DestroyWindow(hwnd);
+
             }
 
             case WM_DESTROY: {