fix: upgrade localStorage from 1.0.3 to 1.0.4

Snyk has created this PR to upgrade localStorage from 1.0.3 to 1.0.4.

See this package in npm:
https://www.npmjs.com/package/localStorage

See this project in Snyk:
https://app.snyk.io/org/contentstack-ecosystem/project/16ab5deb-a0ec-44d3-af20-f2768db6b494?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -106,6 +106,6 @@
     "@contentstack/utils": "^1.1.1",
     "es6-promise": "^4.1.1",
     "isomorphic-fetch": "^3.0.0",
-    "localStorage": "1.0.3"
+    "localStorage": "1.0.4"
   }
 }