Fix GetContentsByCreator returning the same content multiple times

src/views/contents/ContentList.vue

@@ -3,9 +3,9 @@
   <v-infinite-scroll :items="contents"
                      :onLoad="fetchContents">
 
-    <template v-for="content in contents">
+    <template v-for="content in contents" :key="content">
       <content-card :content="content"
-                    class="w-full  my-2"
+                    class="my-1"
       ></content-card>
     </template>