fix broken js.cookie imports

spec/javascripts/activities_spec.js.es6

 /* eslint-disable no-unused-expressions, comma-spacing, prefer-const, no-prototype-builtins, semi, no-new, keyword-spacing, no-plusplus, no-shadow, max-len */
 require('./spec_helper');
-require('vendor/js.cookie.js');
+window.Cookies = require('vendor/js.cookie');
 require('vendor/jquery.endless-scroll.js');
 require('pager');
 require('activities');

spec/javascripts/awards_handler_spec.js

@@ -3,7 +3,7 @@
 require('./spec_helper');
 require('awards_handler');
-require('vendor/js.cookie');
+window.Cookies = require('vendor/js.cookie');
 require('./fixtures/emoji_menu');
 (function() {

spec/javascripts/boards/boards_store_spec.js.es6

@@ -8,7 +8,7 @@
 require('../spec_helper');
 require('jquery_ujs');
-require('js.cookie');
+window.Cookies = require('vendor/js.cookie');
 require('vue');
 require('vue-resource');
 require('lib/utils/url_utility');

spec/javascripts/boards/issue_spec.js.es6

@@ -4,7 +4,7 @@
 require('../spec_helper');
 require('jquery_ujs');
-require('js.cookie');
+window.Cookies = require('vendor/js.cookie');
 require('vue');
 require('vue-resource');
 require('lib/utils/url_utility');

spec/javascripts/boards/list_spec.js.es6

@@ -7,7 +7,7 @@
 require('../spec_helper');
 require('jquery_ujs');
-require('js.cookie');
+window.Cookies = require('vendor/js.cookie');
 require('vue');
 require('vue-resource');
 require('lib/utils/url_utility');

spec/javascripts/dashboard_spec.js.es6

@@ -2,7 +2,7 @@
 require('./spec_helper');
 require('sidebar');
-require('vendor/js.cookie');
+window.Cookies = require('vendor/js.cookie');
 require('lib/utils/text_utility');
 ((global) => {

spec/javascripts/right_sidebar_spec.js

@@ -3,7 +3,7 @@
 require('./spec_helper');
 require('right_sidebar');
-require('vendor/js.cookie');
+window.Cookies = require('vendor/js.cookie');
 require('extensions/jquery.js');
 (function() {