Show offline export on modules as home page
Show offline export on modules as home page

fixes OFFW-202

Test plan
- Turn on offline content for the course
- Set modules as the home page
- View the home page as a student and a teacher
- Ensure you can see the offline export button
  for both

Change-Id: If8b9277d03b653548e239b6a5fe11df8ed256590
Reviewed-on: https://gerrit.instructure.com/107808
Tested-by: Jenkins
Reviewed-by: Jon Willesen <0321efbc0acf6204eb6035acb1d418838b450d08@instructure.com>
QA-Review: Nathan Rogowski <2e8aa918660411855c6d44d5bb2da677aa033255@instructure.com>
Product-Review: Mysti Sadler <431d062aff1e8f25416b3a7b732fe6effdb03f9a@instructure.com>

instructure/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,instructure/canvas-lms,djbender/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,djbender/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms