Move Help Link
Move Help Link

closes: CNVS-30609

This moves the help link to be underneath the other links in the global
navigation, but not fixed to the bottom.

Test Plan:
- Login to Canvas
- Make sure help link is enabled
- Help should now be at the bottom of the global navigation link list

Change-Id: Id17287441f1d52b66cf22a2a871c8a6719cf391a
Reviewed-on: https://gerrit.instructure.com/86222
Tested-by: Jenkins
Reviewed-by: Jennifer Stern <7e594e5cba47371ac9ee694a84b9d94f9f6ec815@instructure.com>
Product-Review: Jennifer Stern <7e594e5cba47371ac9ee694a84b9d94f9f6ec815@instructure.com>
QA-Review: Pierce Arner <de38b793164d9bfa12fc4185260c174139808169@instructure.com>

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