Fix RadioButton style

Signed-off-by: Ajay Bura <ajbura@gmail.com>

src/app/atoms/button/RadioButton.jsx

@@ -3,6 +3,7 @@ import PropTypes from 'prop-types';
 import './RadioButton.scss';
 
 function RadioButton({ isActive, onToggle }) {
+  if (onToggle === null) return <span className={`radio-btn${isActive ? ' radio-btn--active' : ''}`} />;
   return (
     // eslint-disable-next-line jsx-a11y/control-has-associated-label
     <button
@@ -15,11 +16,12 @@ function RadioButton({ isActive, onToggle }) {
 
 RadioButton.defaultProps = {
   isActive: false,
+  onToggle: null,
 };
 
 RadioButton.propTypes = {
   isActive: PropTypes.bool,
-  onToggle: PropTypes.func.isRequired,
+  onToggle: PropTypes.func,
 };
 
 export default RadioButton;