fix pill localization
fix pill localization

by avoiding calling `formatMessage` before i18n is initialized.

test plan: ensure the "submitted", "graded", etc. pills are
  localized.

fixes ADMIN-108

Change-Id: Icf19d75a6ec4ef9dc8715624f264894dc3357691
Reviewed-on: https://gerrit.instructure.com/128952
Tested-by: Jenkins
Reviewed-by: Dan Minkevitch <2591e5f46f28d303f9dc027d475a5c60d8dea17a@instructure.com>
QA-Review: Mysti Sadler <431d062aff1e8f25416b3a7b732fe6effdb03f9a@instructure.com>
Product-Review: Jeremy Stanley <b3f594e10a9edcf5413cf1190121d45078c62290@instructure.com>

instructure/canvas-planner,instructure/canvas-planner,instructure/canvas-planner