fix(formatter): correct formatter output and usage

Author: c0d3h01

flake.nix

@@ -64,18 +64,16 @@
       default = import ./shell.nix {inherit (mkPkgs system) pkgs;};
     });
 
-    formatter = eachSystem (system:
-      (import ./formatter.nix {
-        inherit self;
-        pkgs = mkPkgs system;
-      }).formatter);
+    formatter = eachSystem (system: let
+    formatter = import ./formatter.nix { inherit self; pkgs = mkPkgs system; };
+    in {
+      default = formatter.formatter;
+    });
 
-    checks = eachSystem (system: {
-      formatting =
-        (import ./formatter.nix {
-          inherit self;
-          pkgs = mkPkgs system;
-        }).check;
+    checks = eachSystem (system: let
+      formatter = import ./formatter.nix { inherit self; pkgs = mkPkgs system; };
+    in {
+      formatting = formatter.check;
     });
   };
 }