Avoid possible infinite recursion

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

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

@@ -1,5 +1,5 @@
 {
-  user ? throw "user argument is required",
+  username ? throw "username argument is required",
 }:
 {
   config,
@@ -8,17 +8,20 @@
   ...
 }:
 let
-  hmConfig = config.home-manager.users.${user.name};
+  userConfig = config.users.users.${username};
+  hmConfig = config.home-manager.users.${username};
 in
 {
-  home-manager.users.${user.name} = {
+  home-manager.users.${username} = {
     programs.rofi = {
       enable = true;
       package = pkgs.rofi-wayland;
       font = builtins.head hmConfig.theme.font.monospace.names;
     };
 
-    home.persistence."/cache${user.home}".directories = [ "${hmConfig.xdg.relativeCacheHome}/rofi" ];
+    home.persistence."/cache${userConfig.home}".directories = [
+      "${hmConfig.xdg.relativeCacheHome}/rofi"
+    ];
 
     wayland.windowManager.hyprland.settings.bind = [
       "$mod, r, exec, ${lib.meta.getExe pkgs.rofi-wayland} -cache-dir ${hmConfig.xdg.cacheHome}/rofi -show drun"