Don't uninstall decorations if window handle is 0 on windows.

windows/src/main/java/com/github/weisj/darklaf/platform/windows/ui/WindowsTitlePane.java

@@ -188,8 +188,10 @@ public class WindowsTitlePane extends CustomTitlePane {
 
     protected void uninstallDecorations() {
         window = null;
+        if (windowHandle != 0) {
             JNIDecorationsWindows.uninstallDecorations(windowHandle);
             windowHandle = 0;
+        }
         rootPane.removeContainerListener(rootPaneContainerListener);
         rootPane.getLayeredPane().removeContainerListener(layeredPaneContainerListener);
         if (menuBar != null) {