Walkthrough component[WIP]

[ImmanuelSegol]

• [ ] All speced functionally is implemented and is working
• [ ] Unit tests for all functions and modules
• [ ] Integration tests for all use cases
• [ ] Comment documentation for all modules, functions and types
• [ ] Ready for code review

Issue #5 @iamonuwa @avive How would you guys recommend I add SVG images to the app?