fix(user): fix profile icon installation

home/profile.nix

@@ -144,6 +144,26 @@ in {
       home.stateVersion = "23.11";
     }) cfg.profiles;
 
+    system.activationScripts = mapAttrs'
+    (name: opts: nameValuePair
+    "${name}-profile-icon"
+    {
+      deps = [ "users" ];
+      text = let
+        iconDest = "/var/lib/AccountsService/icons/${name}";
+        userConf = pkgs.writeText "${name}-config" ''
+          [User]
+          Session=
+          Icon=${iconDest}
+          SystemAccount=false
+        '';
+      in ''
+        install -Dm 0444 ${opts.picture} ${iconDest}
+        install -Dm 0400 ${userConf} /var/lib/AccountsService/users/${name}
+      '';
+    })
+    (filterAttrs (n: _: n != "root") config.users.profiles);
+
     # set up standard persistence for users
     # this is registered internally for each software's configuration
     environment.persistence."/nix/persist" = {