建议修复一下hexo新版兼容问题，附解决办法

[ai0by]

新增js文件themes/indigo/scripts/lodash-inject.js

const _ = require('lodash');

// 在每个模板渲染时注入 lodash
hexo.extend.filter.register('template_locals', function(locals) {
  if (!locals._) {
    locals._ = _;
  }
  return locals;
});