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/common/keychron.nix

@@ -2,8 +2,6 @@
 
 {
   services.xserver = {
-    enable = true;
-
     xkb = {
       layout = "custom-br";
       variant = "";

hosts/common/nvidia/default.nix

@@ -39,6 +39,9 @@
         ];
       });
     };
+    xserver = {
+      videoDrivers = [ "nvidia" ];
+    };
   };
   nixpkgs.config.cudaSupport = true;
   environment.systemPackages = with pkgs; [