Fix title for assignment create page to match expected value
Fix title for assignment create page to match expected value

fixes CNVS-25668

test plan:
- Create new assignment
- Ensure title on tab is "Create Assignment"
- Save assignment
- Edit Assignment
- Ensure title on tab is "Edit Assignment"

Change-Id: Ic64cee244ff0da31299679108b72b3f488bb0c99
Reviewed-on: https://gerrit.instructure.com/68702
Tested-by: Jenkins
Reviewed-by: Matt Berns <e53c8988cd428dde240324ce2797c8eb7073560f@instructure.com>
QA-Review: Rajkumar Kethavath <943d80ed9dc95d434849fae8b8fb2a95a056374d@instructure.com>
Product-Review: Jason Sparks <542e620f0c6c3447ce6e2e8c83a97102b99f89c6@instructure.com>

sfu/canvas-lms,dgynn/canvas-lms,SwinburneOnline/canvas-lms,grahamb/canvas-lms,djbender/canvas-lms,dgynn/canvas-lms,fronteerio/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,grahamb/canvas-lms,instructure/canvas-lms,SwinburneOnline/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,fronteerio/canvas-lms,instructure/canvas-lms,djbender/canvas-lms,dgynn/canvas-lms,venturehive/canvas-lms,redconfetti/canvas-lms,djbender/canvas-lms,SwinburneOnline/canvas-lms,redconfetti/canvas-lms,sfu/canvas-lms,dgynn/canvas-lms,fronteerio/canvas-lms,roxolan/canvas-lms,roxolan/canvas-lms,djbender/canvas-lms,grahamb/canvas-lms,venturehive/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,grahamb/canvas-lms,roxolan/canvas-lms,sfu/canvas-lms,roxolan/canvas-lms,fronteerio/canvas-lms,SwinburneOnline/canvas-lms,redconfetti/canvas-lms,matematikk-mooc/canvas-lms,HotChalk/canvas-lms,HotChalk/canvas-lms,matematikk-mooc/canvas-lms,redconfetti/canvas-lms,matematikk-mooc/canvas-lms,HotChalk/canvas-lms,sfu/canvas-lms,matematikk-mooc/canvas-lms,HotChalk/canvas-lms,instructure/canvas-lms,grahamb/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms