Fix prop type for popover

src/components/MUI/PopoverComponent.js

@@ -26,7 +26,7 @@ const PopoverComponent = ({ open, anchorEl, onClose, content }) => {
 };
 
 PopoverComponent.propTypes = {
-	anchorEl: PropTypes.element,
+	anchorEl: PropTypes.object,
 	open: PropTypes.bool.isRequired,
 	onClose: PropTypes.func.isRequired,
 	content: PropTypes.any,