style(post): enhance post separator and adjust tag display for improved layout

templates/moments.html

@@ -18,8 +18,14 @@
             <span class="post-date" th:text="${#dates.format(moment.spec.releaseTime,'yyyy-MM-dd')}">
               Moment CreateTime
             </span>
-            <span class="post-author" th:with="owner = ${moment.owner}" th:text="${':: '+owner.displayName}">
-              :: Author
+            <span class="post-separator">
+              <span></span>
+              <span></span>
+              <span></span>
+              <span></span>
+            </span>
+            <span class="post-author" th:with="owner = ${moment.owner}" th:text="${owner.displayName}">
+              Author
             </span>
           </div>
           <div class="post-content" th:utext="${content.html}">Moment Content...</div>