* Allow Fourmolu 0.4

* Reformat record construction to Fourmolu style

* Run stylish-haskell on imports

* Enable fourmolu for ghc-9

* Enable fourmolu tests for ghc-9

* Enable fourmolu for ghc-9 and stack

* Correct stack-9.0.1.yaml changes

* Use explicit import to avoid shadowing

* Remove unused import

* Bump plugin version

* Enable -Wall

Co-authored-by: Javier Neira <atreyu.bbb@gmail.com>