Ui improvements (#5588)

* PLT-5354 - Making statistics flow on page

* PLT-5262 - Updating icon on join team page

* PLT-5218 - Making menu colors consistent on mobile

* PLT-5377 - Adding bg to current posts in the RHS

* PLT-5645 - Adjusting spacing after/before ul/ol

webapp/components/rhs_comment.jsx

@@ -286,7 +286,7 @@ export default class RhsComment extends React.Component {
         const isSystemMessage = PostUtils.isSystemMessage(post);
 
         var currentUserCss = '';
-        if (this.props.currentUser === post.user_id) {
+        if (this.props.currentUser.id === post.user_id) {
             currentUserCss = 'current--user';
         }