Design Studio crashes when adding 2D item to Content Library - User Assets using 2D view context menu option, if Content Library and 2D View are in the same docking area or Content Library view is closed.

Steps to reproduce:

• Create/open a project
• Make sure Content Library and 2D View are in the same docking area or close Content lIbrary view.
  
• Add e.g. Rectangle to 2D View
• Right click it and select "Add to Content Library"
• -> Design Studio crashes
• Expectation is that item is added to Content Library and Content Library view is activated
• Does not reproduce if 2D View and Content Library view are in different docking areas
• Does not reproduce when adding items from Navigator, 3D view, Material Browser or Assets view