bug: Sidebar toggle’s bottom border is misaligned with the top navbar's horizontal line in both expanded and collapsed states.

[x15sr71]

Describe the bug
The bottom border of the sidebar toggle button is misaligned with the top navbar's horizontal border. This happens in both expanded and collapsed sidebar states, causing a visual inconsistency.

To Reproduce
Steps to reproduce the behavior:

1. Start the app locally or visit the live site.

2. Observe the sidebar toggle section at the top-left.

3. Toggle between collapsed and expanded views.

4. Notice the border below the toggle doesn't align with the navbar's bottom border.

Expected behavior
The bottom border of the toggle section should line up perfectly with the navbar’s lower border to maintain consistent UI alignment.

Screenshots or GIFs

Info (please complete the following information):

• Browser chrome
• Version 138.0.7204.102