fix: hide Go-To Interview Problems section when empty Fixes #71

[DexAsHisH]

Fixes #71

Changes

• Added conditional rendering to hide "Go-To Interview Problems" section when no problems exist
• Section now only renders when favoriteProblems.length > 0

Testing

• ✅ Tested with empty favoriteProblems array (Oyo company) section is hidden.
• ✅ Linting passed with no new warnings.
• ✅ Full integration testing completed with local database setup.

Screenshots

Before:

After:

[Copilot]

Pull Request Overview

This PR fixes an issue where an empty "Go-To Interview Problems" section was being displayed when no favorite problems exist for a company. The fix adds conditional rendering to only show this section when there are problems to display.

• Added conditional rendering using favoriteProblems.length > 0 check
• Wrapped the entire section div in a conditional JSX expression

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

[zaCKoZAck0]

Looks good to me, will merge this soon!
Thanks @DexAsHisH !

Feel free to explore the platform and star ⭐ this repo, if not already done.
And let me know if you have any feedback or suggestions.