feat: 去除 jQuery (fancybox和圖庫 仍需要加載jQuery)

feat: 點擊文字特效增加隨機配置
feat: 可配置是否添加css前綴
fix: 修復子目錄下，配置justifiedGallery CDN（相對鏈接）後，連接會無法訪問的bugs
fix: 修復 pangu 配置post 後，仍在全站生效的bugs
improvement: 夜間模式下，廣告降低亮度
improvement: 手機端toc邊距微調
improvement: html格式優化
improvement: 搜索優化
improvement: 刪除不必要的語言文件

layout/includes/widget/card_announcement.pug

@@ -1,6 +1,7 @@
-.card-widget.card-announcement
-  .card-content
-    .item-headline
-      i.fas.fa-bullhorn.card-announcement-animation
-      span= _p('aside.card_announcement')
-    .announcement_content!= theme.aside.card_announcement.content
+if theme.aside.card_announcement.enable
+  .card-widget.card-announcement
+    .card-content
+      .item-headline
+        i.fas.fa-bullhorn.card-announcement-animation
+        span= _p('aside.card_announcement')
+      .announcement_content!= theme.aside.card_announcement.content