Change content gap to match design

src/views/contents/ContentList.vue

@@ -6,7 +6,7 @@
                        :onLoad="fetchContents">
 
       <!-- TODO: the -mt-4 is necessary because the v-infinite-scroll has some 'top' panel offsetting the list -->
-      <div class="flex flex-column gap-2 -mt-4">
+      <div class="flex flex-column gap-4 -mt-4">
         <template v-for="content in contents" :key="content.id">
           <component
               :is="isSmallScreen ? ContentCardSm : ContentCardNormal"