home: migrate 'cursor' module to new option

Make it part of 'home.wm' now, since that makes more sense.

Not sure about making it related to 'i3' being activated though, will
need to think about this in the future.

home/wm/cursor/default.nix

@@ -0,0 +1,23 @@
+{ config, lib, pkgs, ... }:
+let
+  cfg = config.my.home.wm.cursor;
+
+  cfg_x = config.my.home.x;
+  cfg_gtk = config.my.home.gtk;
+in
+{
+  config = lib.mkIf cfg.enable {
+    home.pointerCursor = {
+      package = pkgs.ambroisie.vimix-cursors;
+      name = "Vimix-cursors";
+
+      x11 = {
+        inherit (cfg_x) enable;
+      };
+
+      gtk = {
+        inherit (cfg_gtk) enable;
+      };
+    };
+  };
+}

home/wm/default.nix

@@ -10,6 +10,7 @@ let
 in
 {
   imports = [
+    ./cursor
     ./dunst
     ./i3
     ./i3bar
@@ -25,6 +26,10 @@ in
       description = "Which window manager to use for home session";
     };
 
+    cursor = {
+      enable = mkRelatedOption "dunst configuration" [ "i3" ];
+    };
+
     dunst = {
       enable = mkRelatedOption "dunst configuration" [ "i3" ];
     };

home/x/cursor/default.nix

@@ -1,12 +0,0 @@
-{ config, lib, pkgs, ... }:
-let
-  cfg = config.my.home.x;
-in
-{
-  config = lib.mkIf cfg.enable {
-    xsession.pointerCursor = {
-      package = pkgs.ambroisie.vimix-cursors;
-      name = "Vimix-cursors";
-    };
-  };
-}

home/x/default.nix

@@ -4,7 +4,6 @@ let
 in
 {
   imports = [
-    ./cursor
     ./keyboard
   ];