Help boxes in Advanced Text Settings are misaligned on the right side of the UI Builder Inspector window

Steps to reproduce:

1. Create a new Unity project
2. Create a new UI document(Project window ->Create ->UI Toolkit -> UI Document (UXML))
3. Double-click it
4. Add "Text Field" component
5. Make the "Inspector" window wider
6. Find and expand the "Text" section in the "Inspector" window
7. Observe the displayed help box under the "Advanced Text Settings" 
8. Select the "Advanced" item in the "Text Generator Type" dropdown
9. Observe the newly displayed help box, which should appear below the "Text Generator Type" field

Actual results: Help boxes are not aligned on the right side

Expected results: Help boxes should be aligned with all other fields in the "Inspector" window.

Reproducible with versions: 6000.3.3f1, 6000.4.0b3, 6000.5.0a4

Tested on (OS): macOS - Tahoe 26.2

Notes: The same help box alignment issue exists with the help box, which is displayed below the "Scale Mode" field in the "Background" section. The right side of the help box should be aligned with other fields.