The LaTeXT monad transformer has now returned to the previous state where it was nothing but a newtype wrapper of the WriterT monad transformer. All the necessary changes have been made in the library. However, this change will break some code out there. This is for HaTeX-3.12 anyway. We have undo the change to LaTeXT since it is no longer necessary to be protected from the bottoms generated by the LaTeXC instance. This instance does not create bottom values anymore.