Clean up XFCE and install nerdfonts

nixos/configuration.nix

@@ -68,15 +68,14 @@
     LC_TIME = "nl_NL.UTF-8";
   };
 
-  # Enable the X11 windowing system.
-  services.xserver.enable = true;
-
-  # Enable the XFCE Desktop Environment.
-  services.xserver.displayManager.lightdm.enable = true;
-  services.xserver.desktopManager.xfce.enable = true;
-
-  # Configure keymap in X11
+  # Configure X11
   services.xserver = {
+    enable = true;
+
+    # XFCE
+    displayManager.lightdm.enable = true;
+    desktopManager.xfce.enable = true;
+
     xkb.layout = "us";
     xkb.variant = "";
   };
@@ -125,6 +124,9 @@
     # Menu kind
     xfce.xfce4-whiskermenu-plugin
 
+    # Fonts
+    nerdfonts
+
     # Spotify
     spotify
   ];