refactor: switch from modules to import arrays

modules/nixos/features/plasma.nix

@@ -1,36 +1,27 @@
 {
-  config,
-  lib,
   pkgs,
   ...
 }:
-let
-  feature = "plasma";
-in
 {
-  config = lib.mkIf config.${feature}.enable {
-    services = {
-      desktopManager.plasma6.enable = true;
-      displayManager.sddm = {
-        enable = true;
-        wayland.enable = true;
-      };
+  services = {
+    desktopManager.plasma6.enable = true;
+    displayManager.sddm = {
+      enable = true;
+      wayland.enable = true;
     };
-
-    environment.systemPackages =
-      with pkgs.kdePackages;
-      [
-        # keep-sorted start
-        ktorrent
-        kzones
-        # keep-sorted end
-      ]
-      ++ (with pkgs; [
-        # keep-sorted start
-        haruna
-        # keep-sorted end
-      ]);
   };
 
-  options.${feature}.enable = lib.mkEnableOption "enables ${feature}";
+  environment.systemPackages =
+    with pkgs.kdePackages;
+    [
+      # keep-sorted start
+      ktorrent
+      kzones
+      # keep-sorted end
+    ]
+    ++ (with pkgs; [
+      # keep-sorted start
+      haruna
+      # keep-sorted end
+    ]);
 }