feat: gitalk 增加 option 配置

improvement: pug代碼優化

layout/includes/third-party/comments/valine.pug

@@ -1,4 +1,3 @@
-- let option = theme.valine.option ? JSON.stringify(theme.valine.option) : false
 - let emojiMaps = '""'
 if site.data.valine
   - emojiMaps = JSON.stringify(site.data.valine)
@@ -6,7 +5,7 @@ if site.data.valine
 script.
   function loadValine () {
     function initValine () {
-      let initData = {
+      const valine = new Valine(Object.assign({
         el: '#vcomment',
         appId: '#{theme.valine.appId}',
         appKey: '#{theme.valine.appKey}',
@@ -21,19 +20,9 @@ script.
         emojiMaps: !{emojiMaps},
         enableQQ: #{theme.valine.enableQQ},
         path: window.location.pathname,
+        requiredFields: [!{theme.valine.requiredFields ? JSON.stringify(theme.valine.requiredFields).split(',') : ''}],
         visitor: #{theme.valine.visitor}
-      }
-
-      if (!{Boolean(theme.valine.requiredFields)}) { 
-        initData.requiredFields= ('!{theme.valine.requiredFields}'.split(','))
-      }
-      
-      if (!{Boolean(option)}) {
-        const otherData = !{option}
-        initData = Object.assign(initData, otherData)
-      }
-      
-      const valine = new Valine(initData)
+      }, !{JSON.stringify(theme.valine.option)}))
     }
 
     if (typeof Valine === 'function') initValine()