feat: add wallpaper feature with 5 new wallpapers

- Add wallpapers.nix module for wallpaper management
- Update hyprland and rofi configs
- Update m3-ares and m3-kratos user configs
- Update flake inputs

home/features/desktop/wallpapers.nix

@@ -0,0 +1,18 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.features.desktop.wallpapers;
+in {
+  options.features.desktop.wallpapers = mkEnableOption "Wallpapers for Hyprland";
+
+  config = mkIf cfg {
+    xdg.configFile."hypr/wallpapers" = {
+      source = ../../m3tam3re/wallpapers;
+      recursive = true;
+    };
+  };
+}