Add custom impermanence module

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/common/user/configs/gui/hyprshot/default.nix

@@ -1,5 +1,6 @@
 {
-  username ? throw "username argument is required",
+  user ? throw "user argument is required",
+  home ? throw "home argument is required",
 }:
 {
   config,
@@ -7,17 +8,14 @@
   pkgs,
   ...
 }:
-let
-  hmConfig = config.home-manager.users.${username};
-in
 {
-  home-manager.users.${username} = {
+  home-manager.users.${user} = {
     home = {
       packages = with pkgs; [
         hyprshot
         swappy
       ];
-      sessionVariables.HYPRSHOT_DIR = "${hmConfig.xdg.userDirs.pictures}/screenshots";
+      sessionVariables.HYPRSHOT_DIR = "Pictures/screenshots";
     };
 
     wayland.windowManager.hyprland.settings.bind =