fix translation in add attribute button

fix add button not translated to other language.

packages/Webkul/Admin/src/Resources/views/catalog/attributes/index.blade.php

@@ -13,7 +13,7 @@
 
             <div class="page-action">
                 <a href="{{ route('admin.catalog.attributes.create') }}" class="btn btn-lg btn-primary">
-                    {{ __('Add Attribute') }}
+                    {{ __('admin::app.catalog.attributes.add-title') }}
                 </a>
             </div>
         </div>
@@ -28,4 +28,4 @@
 
         {!! view_render_event('bagisto.admin.catalog.attributes.list.after') !!}
     </div>
-@stop
+@stop