Changes 'publish' to 'post' for moderated grading
Changes 'publish' to 'post' for moderated grading

closes CNVS-23903

Test Plan:
  - Load up a moderated grading environment
  - Go to the moderation page
  - The Button in the top right should now say 'Post' rather
    than 'Publish'

Change-Id: I666435e6b7b9038dc2dcac12166705fbac4bf713
Reviewed-on: https://gerrit.instructure.com/64822
Tested-by: Jenkins
Reviewed-by: Sterling Cobb <7a57d889ea7f266299434459898a90c7f6a1ca4d@instructure.com>
QA-Review: Jahnavi Yetukuri <ed2b2672ccc2e59e56c0615df7f01b579202e014@instructure.com>
Product-Review: Cosme Salazar <d37f5e06cd46b8fd23ce5553334e09ede5394232@instructure.com>

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