Get locale from JWT or locale cookie

[cdcabrera]

Description

As a developer it would be more helpful to an end user to not hardcode the loaded locale. Instead it should be loaded either from the available JWT or the locale cookie.

Acceptance Criteria

• locale preferences should load from the available JWT or locale cookie
• this update should be incorporated into userServices.js and make use of the js-cookie npm package

Assumptions and Questions

• the JWT and/or locale cookie can be found by using the proxy interface, logging in, and using your browsers developer console around some flavor of storage settings