"UXML Upgrades" foldout overlaps the "Last import generated... warnings" box in the UXML asset inspector

Steps to reproduce:

1. Create a new project using Universal 3D template
2. Create a new any Material
3. Go to Assets > Create > UI Toolkit > UI Document (UXML) and open it
4. Add a Visual Element to the Hierarchy and select it
5. In the Inspector, expand the Material foldout
6. Click on the object picker of the Material property
7. Select the previously created Material and Save
8. Select any other item and Save
9. In the Project window, select the newly created UXML asset
10. In the Inspector, observe the "UXML Upgrades" foldout

Actual results: "UXML Upgrades" foldout overlaps the "Last import generated 2 warnings" box

Expected results: The "UXML Upgrades" foldout and the import warnings box do not overlap

Reproducible with versions: 6000.6.0a2

Can’t test with versions: 6000.4.1f1, 6000.5.0b2 (UXML Upgrades foldout not present)

Tested on (OS): Windows 11

Notes:

• Probably reproduces under all circumstances where the "Last import generated X warnings" box appears, but these were the only steps I could establish to reliably trigger the warning box