Fix linter errors

app/gabsocial/components/icon_button.js

@@ -23,6 +23,7 @@ export default class IconButton extends React.PureComponent {
     animate: PropTypes.bool,
     overlay: PropTypes.bool,
     tabIndex: PropTypes.string,
+    text: PropTypes.string,
   };
 
   static defaultProps = {

app/gabsocial/components/sidebar_menu.js

@@ -131,7 +131,7 @@ class SidebarMenu extends ImmutablePureComponent {
                   <Icon id='dollar' />
                   <span className='sidebar-menu-item__title'>{intl.formatMessage(messages.donate)}</span>
                 </NavLink>
-              : ''}
+                : ''}
               <NavLink className='sidebar-menu-item' to='/lists' onClick={onClose}>
                 <Icon id='list' />
                 <span className='sidebar-menu-item__title'>{intl.formatMessage(messages.lists)}</span>