The goal of this task is to have a shared folder which consists of shared code between UI and app.
Final folder structure will be:

• packages/app/src/app
• packages/app/src/ui
• packages/app/src/shared

In order to do this

• relocate packages/app/src/app/ to packages/app/src/app/core
• relocate packages/app/src/shared to packages/app/src/app/core
• create packages/app/src/shared and move shared code in to the folder

https://consensys.slack.com/archives/C03RV0Q4TGB/p1674215576863289