TOULOUSE, France (Reuters) - Airbus will resume production on Monday at a slower than normal rate after halting French and Spanish plants for several days to adapt to coronavirus restrictions, unions said on Saturday. Reuters reported last week that the planemaker hoped to restart on March 23 after a temporary "stop and fix" shutdown to deep-clean factories and adjust working practices to the need for greater distancing between staff. The CFE-CGC union said the return to production would be..