split up flake and use emacs as nixos module

modules/programs/emacs/emacs.nix

@@ -5,10 +5,10 @@
   ...
 }:
 let
-  schemeName = config.theme.name;
+  schemeName = config.scheme;
 in
 {
-  flake.wrappers.emacs =
+  wrappers.emacs =
     {
       pkgs,
       wlib,
@@ -17,7 +17,8 @@ in
     let
       scheme = (pkgs.callPackage inputs.base16.lib { }).mkSchemeAttrs schemeName;
     in
-    {
+      {
+        enable = true;
       imports = [
         wlib.wrapperModules.emacs
       ];