Comment mapper function fix

Author: nemoipaha

frontend/src/components/view/tweet/Comment.vue

@@ -25,7 +25,7 @@
                             <span class="icon is-medium has-text-info">
                                 <font-awesome-icon icon="heart" />
                             </span>
-                            {{ comment.likesCount || 0 }}
+                            {{ comment.likesCount }}
                         </a>
                     </div>
                 </nav>

frontend/src/services/Normalizer.js

@@ -13,7 +13,9 @@ export const commentMapper = comment => ({
     authorId: comment.author_id,
     created: comment.created_at,
     updated: comment.updated_at,
-    author: userMapper(comment.author)
+    author: userMapper(comment.author),
+    // @todo fix backend api
+    likesCount: comment.likes_count || 0
 });
 
 export const tweetMapper = tweet => ({