feat: update to use hyprland and than back to gnome (wayland)

* add Waybar configs under `home-manager/hyprland/config/`
* extend Hyprland config with wallpaper, blur, animations, and new keybindings
* adjust common configs: Keychron (remove redundant xserver enable) and NVIDIA (add `videoDrivers = [ "nvidia" ]`)
* update `hosts/Nixstation` with GNOME desktop, GDM, Wacom config, and disable Hyprland
* add `home-manager/gnome/default.nix` with dconf, extensions, icons, and packages
* switch `home-manager/home.nix` from Hyprland to GNOME and update packages and Kitty config

hosts/Nixstation/default.nix

@@ -17,12 +17,42 @@
     loader.systemd-boot.enable = true;
     loader.efi.canTouchEfiVariables = true;
   };
+  environment.etc."libwacom/intuos4-4x6.tablet".text = ''
+    # Wacom
+    # Intuos4 Small
+    [Device]
+    Name=Wacom Intuos4 4x6
+    DeviceMatch=usb:056a:00b8
+    Class=Intuos4
+    Width=6
+    Height=4
+    Layout=intuos4-4x6.svg
+    IntegratedIn=
+    Styli=0x802;0x804;0x806;0x80a;0x80c;0x902;0x90a;0x100802;0x100804;0x10080a;0x10080c;0x100902;0x10090a;0x120802;0x140802;0x14080a;0x160802;0x16080a;
+
+    [Features]
+    Reversible=true
+    Stylus=true
+    Ring=true
+    Buttons=7
+    StatusLEDs=Ring
+
+    [Buttons]
+    Left=A;B;C;D;E;F;G
+
+    Ring=A
+    RingNumModes=4
+  '';
   environment = {
     systemPackages = with pkgs; [
       act
       btrfs-progs
       cudatoolkit
       networkmanagerapplet
+      libwacom
+      wacomtablet
+      gnome-tweaks
+      gnome-session
     ];
 
     variables = {
@@ -82,15 +112,26 @@
     # };
     dconf.enable = true;
     hyprland = {
-      enable = true;
+      enable = false;
       withUWSM = true;
       xwayland.enable = true;
     };
     virt-manager.enable = true;
   };
-  # security.pam.services.gdm.enableGnomeKeyring = true;
+  security.pam.services.gdm.enableGnomeKeyring = true;
   security.rtkit.enable = true;
   services = {
+    xserver = {
+      enable = true;
+      desktopManager.gnome.enable = true;
+      displayManager.gdm = {
+        enable = true;
+        wayland = true;
+      };
+      displayManager.defaultSession = "gnome";
+    };
+    
+    udev.packages = [ pkgs.libwacom ];
     avahi = {
       enable = true;
       nssmdns4 = true;
@@ -109,13 +150,7 @@
 
     flatpak.enable = true;
 
-    greetd = {
-      enable = true;
-      settings.default_session = {
-        command = "${pkgs.hyprland}/bin/Hyprland";
-        user = "thiago";
-      };
-    };
+
 
     pipewire = {
       enable = true;