fixes #3550

app/controllers/accessibility/forms.php

...grations/5.3.22_add_report_barrier_mode_configuration.php

lib/navigation/FooterNavigation.php

resources/assets/stylesheets/studip.scss

templates/forms/datetimepicker_input.php

templates/forms/i18n_formatted_input.php

templates/forms/i18n_text_input.php

templates/forms/i18n_textarea_input.php

templates/forms/multiselect_input.php

templates/forms/quicksearch_input.php

templates/forms/select_input.php

templates/forms/text_input.php

templates/forms/wysiwyg_input.php