feat: 添加 artitalk 説説插件

style: 主題文件分類調正

layout/includes/additional-js.pug

@@ -35,6 +35,9 @@ div
   .js-pjax
     if theme.subtitle.enable && is_home() && theme.index_img !== false
       include ./third-party/subtitle.pug
+    
+    if page.type === 'artitalk'
+      include ./third-party/artitalk.pug
 
     include ./third-party/math/index.pug
 

layout/includes/page/artitalk.pug

@@ -0,0 +1 @@
+#artitalk_main

layout/includes/page/categories.pug

@@ -0,0 +1,5 @@
+.category-lists
+  .category-title.is-center= _p('page.category')
+    |  - 
+    span.category-amount= site.categories.length
+  div!= list_categories()