replaces hand-rolled Popper integration with modifier #7659

Job	Run time
Lint	1m 15s
Build (20, frontend)	1m 40s
Build (20, test-app)	1m 15s
Test Deploy Build (20, frontend)	2m 1s
Build (20, lti-course-manager)	1m 14s
Test Deploy Build (20, lti-course-manager)	1m 15s
Build (20, lti-dashboard)	1m 16s
Test Deploy Build (20, lti-dashboard)	1m 12s
Test (20, frontend)	4m 44s
Test (20, test-app)	2m 13s
Test (20, lti-course-manager)	58s
Test (20, lti-dashboard)	59s
Scan with UCSF SonarQube	27s
Upload Coverage	9s
	20m 38s

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