breaking changes: 更新 fancybox 到 4

improvement: 網站資料顯示，但標籤和分類為0時，數量顯示為 0，而不是隱藏
improvement: subtitle 代碼優化， 1.當source設為false，同時sub也沒有配置，將會讀取hexo配置文件的 subtitle,2.無須使用轉義字符
improvement: 禁止ios點擊搜索框，頁面放大的問題

layout/includes/head.pug

@@ -20,7 +20,7 @@
 
 meta(charset='UTF-8')
 meta(http-equiv="X-UA-Compatible" content="IE=edge")
-meta(name="viewport" content="width=device-width,initial-scale=1")
+meta(name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no")
 title= tabTitle
 if pageKeywords
   meta(name="keywords" content=pageKeywords)

layout/includes/page/flink.pug

@@ -13,7 +13,7 @@
           each item in i.link_list
             .flink-list-item
               a(href=url_for(item.link)  title=item.name target="_blank")
-                .flink-item-icon
+                .flink-item-icon.not-lightbox
                   img(src=url_for(item.avatar) onerror=`this.onerror=null;this.src='` + url_for(theme.error_img.flink) + `'` alt=item.name )
                 .flink-item-name= item.name 
                 .flink-item-desc(title=item.descr)= item.descr

layout/includes/sidebar.pug

@@ -3,26 +3,21 @@
   #sidebar-menus
     .avatar-img.is-center
       img(src=url_for(theme.avatar.img) onerror=`onerror=null;src='${theme.error_img.flink}'` alt="avatar")
-    .site-data
-      if site.posts.length
-        .data-item.is-center
-          .data-item-link
-            a(href=url_for(config.archive_dir) + '/')
-              .headline= _p('aside.articles') 
-              .length-num= site.posts.length
+    .site-data.is-center
+      .data-item
+        a(href=url_for(config.archive_dir) + '/')
+          .headline= _p('aside.articles') 
+          .length-num= site.posts.length
 
-      if site.tags.length
-        .data-item.is-center
-          .data-item-link
-            a(href=url_for(config.tag_dir) + '/' )
-              .headline= _p('aside.tags')
-              .length-num= site.tags.length
+      .data-item
+        a(href=url_for(config.tag_dir) + '/' )
+          .headline= _p('aside.tags')
+          .length-num= site.tags.length
+
+      .data-item
+        a(href=url_for(config.category_dir) + '/')
+          .headline= _p('aside.categories') 
+          .length-num= site.categories.length
 
-      if site.categories.length
-        .data-item.is-center
-          .data-item-link
-            a(href=url_for(config.category_dir) + '/')
-              .headline= _p('aside.categories') 
-              .length-num= site.categories.length
     hr
     !=partial('includes/header/menu_item', {}, {cache: true})