[eDrive][persisted=false] STEP 4 periodic scan as worker
Description
Replace ObserverService by a worker
Small reorganization of packages and renaming
Technical details
Tests
Issues
https://gitlab.e.foundation/e/os/backlog/-/work_items/1698
https://gitlab.e.foundation/e/os/backlog/-/issues/299
10 commandments of code reviews
Edited by Vincent Bourgmayer