fix(shell): user profile dropdown chevron direction on open (#27475)

[vishwajeett007]

What does this PR do?

This PR fixes the User Profile dropdown chevron so it correctly reflects the dropdown state:

• Chevron Down (▼) when closed
• Chevron Up (▲) when open

This makes the User Profile dropdown consistent with other expandable sidebar items like Apps and Insights.

• Fixes Bug: User Profile Chevron arrow direction does not update on dropdown open #27475
• Fixes CAL-7163

Mandatory Tasks (DO NOT REMOVE)

• I have self-reviewed the code (A decent size PR without self-review might be rejected).
• I have updated the developer docs in /docs if this PR makes changes that would require a documentation change. N/A
• I confirm automated tests are in place that prove my fix is effective or that my feature works. (UI-only change; verified manually.)

How should this be tested?

• Environment variables: None
• Minimal test data: Any logged-in user account
• Expected behavior: Chevron direction should always match dropdown open/close state

Steps

1. Log in and navigate to the dashboard.
2. In the left sidebar, locate the User Profile / Profile Switcher row.
3. Confirm the chevron shows down (▼) when the dropdown is closed.
4. Click the profile row to open the dropdown.
5. Confirm the chevron changes to up (▲) when the dropdown is open.
6. Close the dropdown using either:
   • Click outside the menu, or
   • Press Escape
7. Confirm the chevron returns to down (▼).

Checklist

• I haven't read the contributing guide
• My code doesn't follow the style guidelines of this project
• I haven't commented my code, particularly in hard-to-understand areas
• I haven't checked if my changes generate no new warnings
• My PR is too large (>500 lines or >10 files) and should be split into smaller PRs

[cubic-dev-ai]

No issues found across 2 files

[romitg2]

Looks Good to me!