fix(issue-308): Added sticky behavior for header in client panel

[konstantinbytsay]

Detailed Information

Added sticky behavior for the header in the client panel to ensure it remains visible at the top of the viewport as the user scrolls down the page.

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Related Issues

Closes #308

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Type of Change

• 🐛 Bug fix or ⚙️ enhancement
• ✨ New feature or Chore (change with no new features or fixes)
• 📚 Documentation update

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Checklist (select as many as applicable)

• The code follows the style guidelines of this project.
• All new and existing tests pass.
• This pull request is ready to be merged and reviewed.

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Additional Notes

• Testing: Ensure that the sticky header behavior has been tested across different browsers and devices to confirm consistency.
• Code Review: Request a review from team members familiar with the front-end codebase to verify the implementation.

[Solomonsolomonsolomon]

LGTM!!!