Update js-cookie to latest version

package.json

@@ -90,7 +90,7 @@
     "jquery-ujs": "1.2.2",
     "jquery.caret": "^0.3.1",
     "jquery.waitforimages": "^2.2.0",
-    "js-cookie": "^2.1.3",
+    "js-cookie": "^2.2.1",
     "jszip": "^3.1.3",
     "jszip-utils": "^0.0.2",
     "katex": "^0.10.0",

yarn.lock

@@ -6872,10 +6872,10 @@ js-beautify@^1.6.12, js-beautify@^1.8.8:
     mkdirp "~0.5.1"
     nopt "~4.0.1"
 
-js-cookie@^2.1.3:
-  version "2.1.3"
-  resolved "https://registry.yarnpkg.com/js-cookie/-/js-cookie-2.1.3.tgz#48071625217ac9ecfab8c343a13d42ec09ff0526"
-  integrity sha1-SAcWJSF6yez6uMNDoT1C7An/BSY=
+js-cookie@^2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/js-cookie/-/js-cookie-2.2.1.tgz#69e106dc5d5806894562902aa5baec3744e9b2b8"
+  integrity sha512-HvdH2LzI/EAZcUwA8+0nKNtWHqS+ZmijLA30RwZA0bo7ToCckjK5MkGhjED9KoRcXO6BaGI3I9UIzSA1FKFPOQ==
 
 "js-tokens@^3.0.0 || ^4.0.0", js-tokens@^4.0.0:
   version "4.0.0"