Feature request: make error prefixes optional

[pimlie]

Currently the prefixes [Network] and [GraphQL] is always added on errors, but I prefer to not have those prefixes as I use the error message directly on my forms. And then it looks weird that it says [GraphQL]: Some validation error returned by the API.

[logaretm]

You can always clean them up before displaying them, not sure I would implement something like this at the moment.