Use fourmolu from haskell.nix

Author: bladyjoker

extras/flake-haskell.nix

@@ -43,6 +43,7 @@ let
             haskell-language-server = { };
             hlint = { };
             cabal-fmt = { };
+            fourmolu = { };
           };
 
           shellHook = lib.mkForce devShellHook;

settings.nix

@@ -50,15 +50,12 @@
 
               tools = [
                 pkgs.haskellPackages.apply-refact
-                pkgs.haskellPackages.fourmolu
 
                 inputs.pre-commit-hooks.outputs.packages.${system}.deadnix
                 inputs.pre-commit-hooks.outputs.packages.${system}.nixpkgs-fmt
 
                 inputs.pre-commit-hooks.outputs.packages.${system}.shellcheck
 
-                inputs.pre-commit-hooks.outputs.packages.${system}.typos
-
                 inputs.pre-commit-hooks.outputs.packages.${system}.markdownlint-cli
                 inputs.pre-commit-hooks.outputs.packages.${system}.dhall