Draft: Replace periodic user info fetching task by a trigger on screen On event

Description

Replace periodic user info fetching task by a trigger on screen On event.

Refactor some class related to the modfication to clear warning, remove dead code and wrote unit test.

⚠ currently testing

Technical details

Tests

Issues

https://gitlab.e.foundation/e/os/backlog/-/issues/289

10 commandments of code reviews

👪 ❤ https://gitlab.e.foundation/internal/wiki/-/wikis/mobile-team/guidelines/Code-review