{{ strtoupper(__('app.url')) }} {!! Form::text('config[override_url]', isset($item) ? $item->getconfig()->override_url : null, ['placeholder' => __('app.apps.override'), 'id' => 'override_url', 'class' => 'form-control']) !!}

{{ __('app.apps.username') }} {!! Form::text('config[username]', isset($item) ? $item->getconfig()->username : null, ['placeholder' => __('app.apps.username'), 'data-config' => 'username', 'class' => 'form-control config-item']) !!}

{{ __('app.apps.password') }} {!! Form::input('password', 'config[password]', '', ['placeholder' => __('app.apps.password'), 'data-config' => 'password', 'class' => 'form-control config-item']) !!}

Test