chore: remove space

Author: bourtitom

src/Form/Type/UiElement/ArticlesSelectionUiElementType.php

@@ -70,7 +70,6 @@ public function buildForm(FormBuilderInterface $builder, array $options): void
                         'class' => 'btn-outline-danger',
                     ],
                 ],
-
                 'attr' => [
                     'class' => 'row row-cols-1 row-cols-sm-2',
                 ],