At a busy Beirut centre, migrant volunteers stirred pots of okra soup and shaped balls of the African staple fufu, keeping food coming for those caught between the latest Israel-Hezbollah war.Here, Lebanon's migrant workers, among those hit hardest by the fighting, have stepped up to support others in their community now struggling to get by. People drifted in and out, collecting bags of food or hot plates, as the air filled with the scent of co…