don't render content notices on full-width pages
don't render content notices on full-width pages

test plan:
 0. configure a course navigation LTI tool with full-width launch
 1. start a content import via the API, specifying the parameter
    migration_settings[import_in_progress_notice]=1 **
 2. you should see the import notice on the course front page
 3. you should not see the notice when viewing the full-width
    LTI app

** alternatively, you can just turn on the import-in-progress
   notice in the Rails console, which will give you more time
   to test:

     course.add_content_notice :import_in_progress

   then remove it when you want it to go away:

     course.remove_content_notice :import_in_progress

fixes CNVS-15679

Change-Id: I3171812e0d631eab96ae7d0061280e57abbdcc46
Reviewed-on: https://gerrit.instructure.com/41456
Tested-by: Jenkins <d95b56ce41a2e1ac4cecdd398defd7414407cc08@instructure.com>
Reviewed-by: Bracken Mosbacker <48b846001bca4166dc3fb7711563afc17525921e@instructure.com>
Product-Review: Bracken Mosbacker <48b846001bca4166dc3fb7711563afc17525921e@instructure.com>
QA-Review: Clare Strong <40d6bb3ed7fef516c73274131d5a837c16de74fd@instructure.com>

utkarshx/canvas-lms,fronteerio/canvas-lms,juoni/canvas-lms,wye0220/shindig-canvas,djbender/canvas-lms,HotChalk/canvas-lms,efrj/canvas-lms,redconfetti/canvas-lms,utkarshx/canvas-lms,ShreniiNepal/shrenii_lmp,jay3126/canvas-lms,Rvor/canvas-lms,Rvor/canvas-lms,grahamb/canvas-lms,juoni/canvas-lms,skmezanul/canvas-lms,kyroskoh/canvas-lms,redconfetti/canvas-lms,wye0220/shindig-canvas,tgroshon/canvas-lms,wrdsb/canvas-lms,greyhwndz/canvas-lms,grahamb/canvas-lms,HotChalk/canvas-lms,va7map/canvas-lms,wrdsb/canvas-lms,sfu/canvas-lms,roxolan/canvas-lms,SwinburneOnline/canvas-lms,fronteerio/canvas-lms,kyroskoh/canvas-lms,sdeleon28/canvas-lms,sdeleon28/canvas-lms,grahamb/canvas-lms,juoni/canvas-lms,va7map/canvas-lms,venturehive/canvas-lms,shidao-fm/canvas-lms,djbender/canvas-lms,utkarshx/canvas-lms,leftplusrightllc/canvas-lms,grahamb/canvas-lms,ShreniiNepal/shrenii_lmp,Rvor/canvas-lms,efrj/canvas-lms,tgroshon/canvas-lms,roxolan/canvas-lms,Jyaasa/canvas-lms,shidao-fm/canvas-lms,greyhwndz/canvas-lms,skmezanul/canvas-lms,juoni/canvas-lms,fronteerio/canvas-lms,skmezanul/canvas-lms,venturehive/canvas-lms,jay3126/canvas-lms,tgroshon/canvas-lms,HotChalk/canvas-lms,samuels410/greatlakes-lms,roxolan/canvas-lms,venturehive/canvas-lms,shidao-fm/canvas-lms,leftplusrightllc/canvas-lms,kyroskoh/canvas-lms,antoniuslin/canvas-lms,Rvor/canvas-lms,kyroskoh/canvas-lms,samuels410/greatlakes-lms,efrj/canvas-lms,skmezanul/canvas-lms,greyhwndz/canvas-lms,antoniuslin/canvas-lms,shidao-fm/canvas-lms,leftplusrightllc/canvas-lms,roxolan/canvas-lms,ShreniiNepal/shrenii_lmp,whalejasmine/canvas-lms,whalejasmine/canvas-lms,sdeleon28/canvas-lms,samuels410/greatlakes-lms,sfu/canvas-lms,efrj/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,jay3126/canvas-lms,antoniuslin/canvas-lms,sfu/canvas-lms,utkarshx/canvas-lms,leftplusrightllc/canvas-lms,samuels410/greatlakes-lms,va7map/canvas-lms,Jyaasa/canvas-lms,SwinburneOnline/canvas-lms,djbender/canvas-lms,grahamb/canvas-lms,redconfetti/canvas-lms,greyhwndz/canvas-lms,sdeleon28/canvas-lms,sfu/canvas-lms,redconfetti/canvas-lms,va7map/canvas-lms,SwinburneOnline/canvas-lms,antoniuslin/canvas-lms,Jyaasa/canvas-lms,wye0220/shindig-canvas,SwinburneOnline/canvas-lms,venturehive/canvas-lms,whalejasmine/canvas-lms,fronteerio/canvas-lms,whalejasmine/canvas-lms,Jyaasa/canvas-lms,wrdsb/canvas-lms,jay3126/canvas-lms,ShreniiNepal/shrenii_lmp,tgroshon/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,wrdsb/canvas-lms,HotChalk/canvas-lms