Set default wallpaper to Attack-on-Titan-2

- Updated host variables files to select Attack-on-Titan-2.jpg and added
  rating comments.
- Simplified boot.nix by removing host‑specific imports and configuring
  limine via package, resolution, and branding color.
- Added limine target support in stylix with color, image, and tile
  scaling options.
- Removed the unused noctalia colors module and its import.
- Adjusted noctalia wallpaper settings to use config.stylix.image
  instead of a host import.

hosts/default/variables.nix

@@ -48,21 +48,21 @@
   # This will set your color palette
   # Default background
   # Add new images to ~/garandos/wallpapers
-  stylixImage = "Attack-on-Titan-1.jpg";
-  # stylixImage = "Attack-on-Titan-2.jpg";
-  # stylixImage = "Attack-on-Titan-3.jpg";
-  # stylixImage = "Avatar-1.jpg";
-  # stylixImage = "Avatar-2.jpg";
-  # stylixImage = "Avatar-3.png";
-  # stylixImage = "Avatar-4.jpg";
-  # stylixImage = "Edge-of-Tomorrow-1.jpg";
-  # stylixImage = "Friren-1.jpg";
-  # stylixImage = "Friren-2.jpg";
-  # stylixImage = "Friren-3.jpg";
-  # stylixImage = "Jablon.png";
-  # stylixImage = "Song-of-the-Sea-1.jpg";
-  # stylixImage = "Wolfwalkers-1.jpg";
-  # stylixImage = "Wolfwalkers-2.jpg";
+  # stylixImage = "Attack-on-Titan-1.jpg"; # og/10
+  stylixImage = "Attack-on-Titan-2.jpg"; # 9/10
+  # stylixImage = "Attack-on-Titan-3.jpg"; # 7.5/10
+  # stylixImage = "Avatar-1.jpg"; # 5/10
+  # stylixImage = "Avatar-2.jpg"; # 4/10
+  # stylixImage = "Avatar-3.jpg"; # 2/10
+  # stylixImage = "Avatar-4.jpg"; # 3/10
+  # stylixImage = "Edge-of-Tomorrow-1.jpg"; # 2/10
+  # stylixImage = "Friren-1.jpg"; # 6.5/10
+  # stylixImage = "Friren-2.jpg"; # 2/10
+  # stylixImage = "Friren-3.jpg"; # 4/10
+  # stylixImage = "Jablon.png"; # 1/10
+  # stylixImage = "Song-of-the-Sea-1.jpg"; # 3/10
+  # stylixImage = "Wolfwalkers-1.jpg"; # 6/10
+  # stylixImage = "Wolfwalkers-2.jpg"; # 5/10
 
   # Set network hostId if required (needed for zfs)
   # Otherwise leave as-is