Update translations.json
Update translations.json

Plural is better for report in French ...
tegud/moonraker,LateRoomsGroup/moonraker,testingbot/moonraker,dandv/moonraker,LateRoomsGroup/moonraker,blackout314/moonraker,tegud/moonraker,blackout314/moonraker,riaan53/moonraker,riaan53/moonraker,dandv/moonraker,testingbot/moonraker