fix: Switch converted to Object Literal (#940)

* updating a switch into object literal and fixed a couple linter errors

* added a comment about weird formatting

* style: use lodash get

* fix: pass eslint + puglint + jest

server/helpers/asset.js

@@ -1,7 +1,5 @@
 const crypto = require('crypto')
 
-/* global WIKI */
-
 module.exports = {
   /**
    * Generate unique hash from page