Add Chinese translation

[PBillingsby]

Overview

Add Chinese translation to job board

Task

• [ ] Add language directory in packages/client/public/locales named by language code: English = /en, Chinese = /zh
• [ ] Add common.json
• [ ] Translate values from packages/client/public/locales/en/common.json matching the nesting of JSON to your created common.json

  Notes

• For now, to test add language code to url to view: localhost:3000/zh
• Server must be restarted after adding new JSON file