Transfer manager did not process the files post-flight
# MRs
- https://gitlab.com/whitebox-aero/whitebox/-/merge_requests/241
- https://gitlab.com/whitebox-aero/whitebox-plugin-transfer-manager/-/merge_requests/5
# Old MRs
- https://gitlab.com/whitebox-aero/whitebox/-/merge_requests/238
- https://gitlab.com/whitebox-aero/whitebox-plugin-transfer-manager/-/merge_requests/4
# Description
Context: https://gitlab.com/whitebox-aero/whitebox/-/issues/498#note_3092749610
During the test, after stopping the flight, there was no indicator whether the post-flight downloading is taking place. It's unknown whether it was not displayed on the mobile screen, or it didn't take place at all
# Scope
- Investigate the issue, in case it did not start, the behavior should be fixed
issue