treewide: move regreet styling out of module

modules/nix/services/greetd.nix

@@ -1,8 +1,8 @@
 {
-  config,
-  inputs,
   lib,
+  inputs,
   pkgs,
+  config,
   ...
 }:
 # thanks https://git.jacekpoz.pl/poz/niksos/src/commit/f8d5e7ccd9c769f7c0b564f10dff419285e75248/modules/services/greetd.nix
@@ -10,6 +10,8 @@ let
   inherit (lib) getExe getExe';
   inherit (inputs.hyprland.packages.${pkgs.stdenv.system}) hyprland;
 
+  styleCfg = config.local.style;
+
   hyprctl = getExe' hyprland "hyprctl";
   Hyprland = getExe' hyprland "Hyprland";
 
@@ -46,9 +48,25 @@ in {
       };
     };
 
-    programs.regreet = {
-      enable = true;
-    };
+    programs.regreet = lib.mkMerge [
+      {
+        enable = true;
+      }
+
+      (lib.mkIf styleCfg.enable {
+        theme = {
+          inherit (styleCfg.gtk.theme) name package;
+        };
+
+        cursorTheme = {
+          inherit (styleCfg.cursorTheme) name package;
+        };
+
+        iconTheme = {
+          inherit (styleCfg.gtk.iconTheme) name package;
+        };
+      })
+    ];
 
     security.pam.services = {
       greetd.enableGnomeKeyring = true;

modules/nix/style/modules/regreet.nix

@@ -1,21 +0,0 @@
-{
-  lib,
-  config,
-  ...
-}: let
-  cfg = config.local.style;
-in {
-  config.programs.regreet = lib.mkIf cfg.enable {
-    theme = {
-      inherit (cfg.gtk.theme) name package;
-    };
-
-    cursorTheme = {
-      inherit (cfg.cursorTheme) name package;
-    };
-
-    iconTheme = {
-      inherit (cfg.gtk.iconTheme) name package;
-    };
-  };
-}