Refactor the ProjectList component file, but keep its behavior and UI exactly the same. Goals: - Improve the code structure and readability (simplify complex functions, break into smaller ones if needed). - Remove any unused variables or imports. - Ensure the file follows best practices and is well-documented. Do not introduce any new features or change how the component works for the user – this is purely a code cleanup for maintainability. If any part of the code is unclear, add a brief comment for clarification.