Add XDG management and grimblast

Signed-off-by: ahuston-0 <aliceghuston@gmail.com>

users/alice/home.nix

@@ -1,4 +1,4 @@
-{ pkgs, ... }:
+{ config, pkgs, ... }:
 
 {
   imports = [
@@ -122,5 +122,16 @@
     EDITOR = "nvim";
   };
 
+  xdg = {
+    enable = true;
+    userDirs = {
+      enable = true;
+      createDirectories = true;
+      extraConfig = {
+        XDG_SCREENSHOTS_DIR = "${config.xdg.userDirs.pictures}/Screenshots";
+      };
+    };
+  };
+
   home.stateVersion = "23.11";
 }