feat: 在綫聊天新增facebook洽談外掛程式 closed #918

feat: 添加artalk評論 closed #933
fix: 修復 開啟 archor 後， facebook評論加載不正確的 bug
fix: 修復 facebook 評論數無法加載的 bug

layout/includes/third-party/card-post-count/fb.pug

@@ -1,10 +1,13 @@
+- const fbSDKVer = 'v14.0'
+- const fbSDK = theme.messenger.enable ? `https://connect.facebook.net/${theme.facebook_comments.lang}/sdk/xfbml.customerchat.js#xfbml=1&version=${fbSDKVer}` : `https://connect.facebook.net/${theme.facebook_comments.lang}/sdk.js#xfbml=1&version=${fbSDKVer}`
+
 script.
   (()=>{
     function loadFBComment () {
-      if (typeof FB === 'object') FB.XFBML.parse()
+      if (typeof FB === 'object') FB.XFBML.parse(document.getElementById('recent-posts'))
       else {
         let ele = document.createElement('script')
-        ele.setAttribute('src','https://connect.facebook.net/!{theme.facebook_comments.lang}/sdk.js#xfbml=1&version=v9.0')
+        ele.setAttribute('src','!{fbSDK}')
         ele.setAttribute('async', 'true')
         ele.setAttribute('defer', 'true')
         ele.setAttribute('crossorigin', 'anonymous')