feat: 更新 lazyload 配置，支持原生 lazyload 功能

feat: 代碼優化
feat: 優化 pageType 邏輯
fix: 修復解密文章後， chartjs 沒有加載的 bug

layout/includes/head/Open_Graph.pug

@@ -2,7 +2,7 @@ if theme.Open_Graph_meta.enable
   -
     const coverVal = page.cover_type === 'img' ? page.cover : theme.avatar.img
     let ogOption = Object.assign({
-      type: is_post() ? 'article' : 'website',
+      type: globalPageType === 'post' ? 'article' : 'website',
       image: coverVal ? full_url_for(coverVal) : '',
       fb_admins: theme.facebook_comments.user_id || '',
       fb_app_id: theme.facebook_comments.app_id || '',

layout/includes/head/analytics.pug

@@ -4,7 +4,7 @@ if theme.baidu_analytics
     (function() {
       var hm = document.createElement("script");
       hm.src = "https://hm.baidu.com/hm.js?!{theme.baidu_analytics}";
-      var s = document.getElementsByTagName("script")[0]; 
+      var s = document.getElementsByTagName("script")[0];
       s.parentNode.insertBefore(hm, s);
     })();
     btf.addGlobalFn('pjaxComplete', () => {

layout/includes/head/config.pug

@@ -116,7 +116,7 @@ script.
       buttonText: '!{_p("load_more")}'
     },
     isPhotoFigcaption: !{theme.photofigcaption},
-    islazyload: !{theme.lazyload.enable},
+    islazyloadPlugin: !{theme.lazyload.enable && !theme.lazyload.native},
     isAnchor: !{theme.anchor.auto_update || false},
     percent: {
       toc: !{theme.toc.scroll_percent},