fix xserver.displayManager warnings

thanks sandro

modules/DE/dwm.nix

@@ -33,6 +33,8 @@
 
     services.gvfs.enable = true;
 
+    services.displayManager.defaultSession = "none+dwm";
+
     services.xserver = {
       enable = true;
       displayManager = {
@@ -42,7 +44,6 @@
           systemctl --user start sxhkd
           systemctl --user start picom
         '';
-        defaultSession = "none+dwm";
       };
       windowManager.session = [
         {

modules/DE/gnome.nix

@@ -42,10 +42,12 @@ _:
       };
     };
 
-    services.xserver = {
+    services = {
+      displayManager.defaultSession = "gnome";
+      xserver = {
         enable = true;
         desktopManager.gnome.enable = true;
-      displayManager.defaultSession = "gnome";
+      };
     };
   };
   #_file

modules/DE/xfce.nix

@@ -10,12 +10,14 @@ _:
 
   config = lib.mkIf config.local.DE.xfce.enable {
     environment.systemPackages = [ pkgs.xfce.xfce4-whiskermenu-plugin ];
-    services.xserver = {
+    services = {
+      xserver = {
         enable = true;
         desktopManager.xfce = {
           enable = true;
           enableScreensaver = true;
         };
+      };
       displayManager.defaultSession = "xfce";
     };
   };

modules/DM/autoLogin.nix

@@ -10,7 +10,7 @@ _:
   };
 
   config = lib.mkIf config.local.DM.autoLogin {
-    services.xserver.displayManager = {
+    services.displayManager = {
       autoLogin = {
         enable = true;
         user = config.local.DM.loginUser;

modules/DM/lightDM.nix

@@ -4,8 +4,7 @@
   options.local.DM.lightdm.enable = lib.mkEnableOption "";
 
   config = lib.mkIf config.local.DM.lightdm.enable {
-    services.xserver = {
-      displayManager = {
+    services.xserver.displayManager = {
       lightdm = {
         enable = true;
         background = "${self.packages.images}/recursion.png";
@@ -42,6 +41,5 @@
       };
     };
   };
-  };
   #_file
 }