Fix alignment issue for sidebar subsection labels

Description

This PR addresses a UI alignment issue in the sidebar navigation.

Some subsection labels are not aligned consistently with other sidebar items, leading to visual inconsistency and reduced readability.

<img width="844" height="525" alt="Image" src="https://github.com/user-attachments/assets/5a625322-3531-4a3e-8176-043822814183" />