feat(jj): configure jj fix with formatters from nvim

Export nvim formatters as `jj fix` tools.

modules/hm/dev.nix

@@ -8,10 +8,10 @@ let
   cfg = config.jhome.dev;
   nvimFormatters = builtins.mapAttrs (
     name: value: value.command
-  ) config.nixvim.plugins.conform-nvim.settings.formatters;
+  ) config.programs.nixvim.plugins.conform-nvim.settings.formatters;
   jjFormatters =
     let
-      ext = extension: "glob:'**/*.${ext}'";
+      ext = extension: "glob:'**/*.${extension}'";
     in
     {
       fish = cmd: {