Add more space btw tutorial tray title and button
Add more space btw tutorial tray title and button

Fixes: FALCOR-132

Test plan:
- Enable the user tutorial feature in Canvas (both the
  account and user settings need to be updated)
- Open the Modules page in a new course
- You should now see more space between the collapse
  button and the heading of the tray:
  https://www.screencast.com/t/nzI6EkNhjT

Change-Id: I666c58f0bb224d8add7bf5bcdab41b489ec8874f
Reviewed-on: https://gerrit.instructure.com/105014
Reviewed-by: Clay Diffrient <9dff2e5c98626d20d2848250c411e8009465bb87@instructure.com>
Tested-by: Jenkins
QA-Review: Dan Sasaki
Product-Review: Mary Jane Anderson <bfb9d3817d27ddfdcd2a6c0c878e2771b3b2c4a7@instructure.com>

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