macOS: Only apply recent gl fix to shared windows and not to all of them

modules/juce_gui_basics/native/juce_mac_NSViewComponentPeer.mm

@@ -702,7 +702,7 @@ public:
 
     void redirectWillMoveToWindow (NSWindow* newWindow)
     {
-        if ([view window] == window && newWindow == nullptr)
+        if (isSharedWindow && [view window] == window && newWindow == nullptr)
         {
             if (auto* comp = safeComponent.get())
                 comp->setVisible (false);