feat(wallpaper): add better wallpaper module

modules/programs/wallpaper/default.nix

@@ -0,0 +1,24 @@
+{ lib, config, pkgs, ... }:
+
+
+with lib;
+let
+  cfg = config.my.programs.wallpaper;
+in
+{
+  options.my.programs.wallpaper.enable = mkEnableOption "wallpaper";
+
+  config = mkIf cfg.enable {
+    environment.systemPackages =
+      let
+        wallpaper = pkgs.writeShellApplication {
+          name = "wallpaper";
+          runtimeInputs = with pkgs; [ findutils coreutils feh hyprland jq fzf viu ];
+          text = builtins.readFile ./wallpaper.sh;
+        };
+      in
+      [
+        wallpaper
+      ];
+  };
+}