missing error rendering for checkbox and radiobox

[gondo]

{% block checkbox_row %} and {% block radio_row %} are missing {{ form_errors(form) }} and associated class-es

in https://github.com/braincrafted/bootstrap-bundle/blob/develop/Resources/views/Form/form_div_layout.html.twig

[florianeckerstorfer]

The error styling was not correctly applied in your code, since checkbox and radio where not in a form group. I fixed that too.