[iOS] Setup the layout of the mobile app

[Weffe]

Base your design off the mockups to create the layout for the mobile app.

[Weffe]

The branch: feature/MobileApp-Layout-28 has been created for you guys to do your development. Once you are done then submit a Pull Request (PR) to merge your progress into the main MobileApp branch. Also, add me as a reviewer when you submit your PR 👍