Remove impermanence home-manager module

Too many bugs to deal with unfortunately.

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

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

@@ -7,10 +7,12 @@
   pkgs,
   ...
 }:
-let
-  userConfig = config.users.users.${username};
-in
 {
+  environment.persistence = {
+    "/persist".users.${username}.directories = [ ".mozilla" ];
+    "/cache".users.${username}.directories = [ ".cache/mozilla" ];
+  };
+
   home-manager.users.${username} = {
     programs.firefox = {
       enable = true;
@@ -99,10 +101,5 @@ in
     home.sessionVariables.DEFAULT_BROWSER = lib.meta.getExe pkgs.firefox;
 
     wayland.windowManager.hyprland.settings.bind = [ "$mod, b, exec, ${lib.meta.getExe pkgs.firefox}" ];
-
-    home.persistence = {
-      "/persist${userConfig.home}".directories = [ ".mozilla" ];
-      "/cache${userConfig.home}".directories = [ ".cache/mozilla" ];
-    };
   };
 }