test plan:
* Go to account settings
* Enable the flag to disable toast notification timeouts
* Do something that would force a toast notification to pop up
(remove a user from/add a user to a course, join a course, etc.)
* Wait *roughly* seven seconds - the toast notification should not
disappear. It will take a day for this notification to disappear.
* Disabling the flag and repeating steps 3 and 4 should result
in the toast notification disappearing after *roughly* seven
seconds as expected.
closes LS-1138
flag = none
Change-Id: I2cacf0bf48568c9b5e88743c44bfd1faececfc51
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/242612
Tested-by: Service Cloud Jenkins <svc.cloudjenkins@instructure.com>
Reviewed-by: Ed Schiebel <eschiebel@instructure.com>
QA-Review: Robin Kuss <rkuss@instructure.com>
Product-Review: Peyton Craighill <pcraighill@instructure.com>