fix:3065: hide reports where 0% leaks where blocked.
Description
Reports Of your defense score and trackers blocked doesn't make much sense when the score is 0% of blocked leaks, which occurs typically when trackers blocking is disabled : https://gitlab.e.foundation/groups/e/os/-/epics/182#note_677314
To avoid this situation, we doesn't show these reports if there is 0 or 0% blocked leaks .
Tests
Issues
Reported here: https://gitlab.e.foundation/groups/e/os/-/epics/182#note_677314
Fix on these issues: https://gitlab.e.foundation/e/os/backlog/-/issues/3065, https://gitlab.e.foundation/e/os/backlog/-/issues/3063