Add default value for Queue count to avoid failed prop type

(cherry picked from commit 43ed7730f08de7baddbdafcccd99370258593221)

frontend/src/Activity/Queue/Queue.js

@@ -338,4 +338,8 @@ Queue.propTypes = {
   onRemoveSelectedPress: PropTypes.func.isRequired
 };
 
+Queue.defaultProps = {
+  count: 0
+};
+
 export default Queue;