chore(helpers): rename `export_config` -> `exportConfig`

layout/_partial/head.ejs

@@ -33,6 +33,6 @@
     <%- __css('fontawesome/css/regular.min.css') %>
     <%- __css('fontawesome/css/solid.min.css') %>
     <%- __css('fontawesome/css/brands.min.css') %>
-    <%- export_config() %>
+    <%- exportConfig() %>
 </head>
 

scripts/helpers/export-config.js

@@ -10,7 +10,7 @@ const yaml = require('js-yaml')
 /**
  * Export theme config to js
  */
-hexo.extend.helper.register('export_config', function () {
+hexo.extend.helper.register('exportConfig', function () {
   const { config, theme } = this
 
   // ------------------------ export language to js ------------------------