Fixed issue with page not scrolling after opening SidebarXS

• Fixed:
- issue with page not scrolling after opening SidebarXS

app/javascript/gabsocial/components/sidebar_xs.js

@@ -79,6 +79,7 @@ class SidebarXS extends ImmutablePureComponent {
   }
 
   handleSidebarClose = () => {
+    document.body.classList.remove(_s.overflowYHidden) 
     this.props.onCloseSidebar()
   }