React Dashboard Optimization & Bug Fixes

Needed improvements and fixes in an existing React dashboard application hosted on GitHub.
The app had performance issues, UI inconsistencies, and several bugs affecting usability.

Scope of Work
- Fix broken components (navigation sidebar, charts rendering)
- Optimize rendering performance using memoization (React.memo, useMemo)
- Refactor messy state management
- Improve responsiveness (mobile + tablet)
- Clean up unused code and improve file structure
- Add loading states and error handling

Deliverables
- Fully working React dashboard
- Cleaner, maintainable codebase
- Improved UI responsiveness
- GitHub commits with clear messages
- Final report of changes