🎨 correct conditional statement

 #257

Author: KRRISH96

lib/card/index.js

@@ -52,7 +52,7 @@ class Card extends React.Component {
         </div>
         {/* eslint-disable jsx-a11y/click-events-have-key-events */}
         {/* eslint-disable jsx-a11y/no-static-element-interactions */}
-        {expandedContent && <div {...iconProps} />}
+        {expandedContent !== null && <div {...iconProps} />}
       </div>
     );
   }