added support for consistent timezone handling and fixed prettier issues

Author: sriramsme

package-lock.json

@@ -21,6 +21,7 @@
     "classnames": "^2.2.6",
     "d3": "^7.8.5",
     "date-fns": "^2.14.0",
+    "date-fns-tz": "^2.0.1",
     "diff": "^5.0.0",
     "dompurify": "^3.1.3",
     "font-awesome": "^4.7.0",