refactor: cleaned up nixos dir

nixos/modules/desktop/gnome/default.nix

@@ -0,0 +1,55 @@
+{ pkgs, ... }:
+{
+  services = {
+    xserver = {
+      enable = true;
+      displayManager = {
+        gdm.enable = true;
+        gdm.wayland = true;
+      };
+      desktopManager.gnome = {
+        enable = true;
+      };
+    };
+    gnome = {
+      games.enable = false;
+      gnome-online-accounts.enable = true;
+    };
+    udev.packages = builtins.attrValues {
+      inherit (pkgs)
+        gnome-settings-daemon
+        ;
+    };
+    gvfs.enable = true;
+  };
+  environment = {
+    variables = {
+      # WEBKIT_FORCE_SANDBOX = "0";
+      # WEBKIT_DISABLE_COMPOSITING_MODE = "1";
+    };
+    gnome.excludePackages = builtins.attrValues {
+      inherit (pkgs)
+        gnome-photos
+        gnome-tour
+        epiphany # web browser
+        cheese # webcam tool
+        geary # email reader
+        evince # document viewer
+        totem # video player
+        yelp # help viewer
+        gnome-calendar
+        atomix # puzzle game
+        gnome-clocks
+        gnome-weather
+        gnome-maps
+        gnome-contacts
+        gnome-characters
+        gnome-music
+        tali # poker game
+        iagno # go game
+        hitori # sudoku game
+        ;
+    };
+  };
+  programs.dconf.enable = true;
+}