Handle files being too large properly
BadMapError: expected a map, got: {:error, :file_too_large}
File "lib/map.ex", line 469, in Map.get/3
File "lib/graphql/api/groups.ex", line 19, in Mobilizon.GraphQL.API.Groups.create_group/1
File "lib/graphql/resolvers/group.ex", line 130, in Mobilizon.GraphQL.Resolvers.Group.create_group/3
File "lib/absinthe/resolution.ex", line 209, in Absinthe.Resolution.call/2
File "lib/absinthe/phase/document/execution/resolution.ex", line 230, in Absinthe.Phase.Document.Execution.Resolution.reduce_resolution/1
...
(3 additional frame(s) were not displayed)
(BadMapError expected a map, got: {:error, :file_too_large})