🐛 修復右下角按鈕被button標籤外掛遮擋的bugs

🐛 修復開啟photofigcaption後，圖庫會出現界面錯亂的Bugs

source/css/_layout/rightside.styl

@@ -2,6 +2,7 @@
   position: fixed
   right: -38px
   bottom: $rightside-bottom
+  z-index: 100
   opacity: 0
   transition: all .5s
 

source/js/main.js

@@ -356,7 +356,7 @@ $(function () {
  * PhotoFigcaption
  */
   function addPhotoFigcaption () {
-    var images = $('#article-container img')
+    const images = $('#article-container img').not('.justified-gallery img')
     images.each(function (i, o) {
       var $this = $(o)
       if ($this.attr('alt')) {