fix: posts sorting on sidebar

Fix wrong sorting when a user creates several posts
without the page reloading.

src/discussions/posts/PostsList.jsx

@@ -61,7 +61,7 @@ const PostsList = ({
     if (topicsIds !== undefined && configStatus === RequestStatus.SUCCESSFUL) {
       loadThreads(topicsIds);
     }
-  }, [courseId, filters, orderBy, page, JSON.stringify(topicsIds), configStatus]);
+  }, [courseId, filters, orderBy, page, JSON.stringify(topicsIds), configStatus, JSON.stringify(sortedPostsIds)]);
 
   useEffect(() => {
     if (isTopicTab) {