Add HR resource labels and helper methods for various resources; update locale handling in user model and department factory

app/Providers/AppServiceProvider.php

@@ -37,6 +37,7 @@ use App\Policies\UserPolicy;
 use App\Policies\VacationPolicy;
 use BezhanSalleh\LanguageSwitch\Events\LocaleChanged;
 use BezhanSalleh\LanguageSwitch\LanguageSwitch;
+use Illuminate\Support\Facades\Auth;
 use Illuminate\Support\Facades\Event;
 use Illuminate\Support\Facades\Gate;
 use Illuminate\Support\ServiceProvider;
@@ -81,11 +82,11 @@ class AppServiceProvider extends ServiceProvider
                 ->locales(config('hr.supported_locales'))
                 ->labels(config('hr.locale_labels'))
                 ->displayLocale('native')
-                ->userPreferredLocale(fn () => auth()->user()?->locale);
+                ->userPreferredLocale(fn () => user()->locale);
         });
 
         Event::listen(function (LocaleChanged $event): void {
-            auth()->user()?->update(['locale' => $event->locale]);
+            user()->update(['locale' => $event->locale]);
         });
     }
 }