* Remove static optimization from message
This check does not pertain to automatic static optimization.
Closes https://github.com/zeit/next.js/issues/9042
* Update help message
* Update autoExport wording to automatic static optimization
* Add sufficiently informative error message
- Update other Next error message for consistency
* Implement feedback - add missing character
Co-Authored-By: Lukáš Huvar <lukas@huvar.cz>
* Fix TypeScript errors
* Update test from autoExport to automatic static optimization
- Also reflect new wording of error message for readability
* Add test for handle non-page in pages
- When target: severless
