Add custom impermanence module

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

hosts/common/user/configs/gui/hyprland/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,
@@ -7,13 +8,10 @@
   pkgs,
   ...
 }:
-let
-  hmConfig = config.home-manager.users.${username};
-in
 {
   programs.hyprland.enable = true;
 
-  home-manager.users.${username} = {
+  home-manager.users.${user} = {
     imports = [ ./options.nix ];
 
     wayland.windowManager.hyprland = {
@@ -138,7 +136,7 @@ in
     '';
 
     theme = {
-      templates."${hmConfig.xdg.configHome}/hypr/theme.conf".source = ./theme.conf;
+      templates."${home}/.config/hypr/theme.conf".source = ./theme.conf;
 
       extraConfig = "${
         lib.meta.getExe (