graded icon updates when SpeedGrader's scores are updated
graded icon updates when SpeedGrader's scores are updated

fixes CNVS-23976

This regression was introduced by 71a64419.

test plan:
 0. As a teacher, create a quiz with an essay question.
 1. As a student, take the quiz.
 2. As the teacher, go to the SpeedGrader.
 3. Enter a score for the essay quiz question.
 4. Click the "Update Scores" button.
 5. Verify the orange dot next to the students name becomes
    a green check mark.
 6. Delete the score for the essay quiz question.
 7. Click the "Update Scores" button.
 8. Verify the green check mark next to the students name
    becomes an orange dot.

Change-Id: I2b7b1ce787375f60fb3c8967b520049108bf5edf
Reviewed-on: https://gerrit.instructure.com/67016
Tested-by: Jenkins
Reviewed-by: Keith T. Garner <a1a80143a840c140f31c3495ebbd9ec906e09fed@instructure.com>
QA-Review: Jason Carter <976bfc4bed0555ff96b3266aea18e7b17a9d471c@instructure.com>
Product-Review: Keith T. Garner <a1a80143a840c140f31c3495ebbd9ec906e09fed@instructure.com>

sfu/canvas-lms,venturehive/canvas-lms,djbender/canvas-lms,fronteerio/canvas-lms,djbender/canvas-lms,grahamb/canvas-lms,sfu/canvas-lms,grahamb/canvas-lms,redconfetti/canvas-lms,sfu/canvas-lms,roxolan/canvas-lms,sfu/canvas-lms,HotChalk/canvas-lms,leftplusrightllc/canvas-lms,SwinburneOnline/canvas-lms,sfu/canvas-lms,leftplusrightllc/canvas-lms,fronteerio/canvas-lms,roxolan/canvas-lms,djbender/canvas-lms,roxolan/canvas-lms,venturehive/canvas-lms,djbender/canvas-lms,HotChalk/canvas-lms,HotChalk/canvas-lms,venturehive/canvas-lms,SwinburneOnline/canvas-lms,redconfetti/canvas-lms,grahamb/canvas-lms,SwinburneOnline/canvas-lms,fronteerio/canvas-lms,leftplusrightllc/canvas-lms,redconfetti/canvas-lms,HotChalk/canvas-lms,venturehive/canvas-lms,roxolan/canvas-lms,fronteerio/canvas-lms,SwinburneOnline/canvas-lms,redconfetti/canvas-lms,sfu/canvas-lms,leftplusrightllc/canvas-lms,grahamb/canvas-lms,sfu/canvas-lms,grahamb/canvas-lms