Use Ember Flatpickr Addon #6873

Job	Run time
Build (20, frontend)	1m 36s
Lint	1m 10s
Build (20, test-app)	1m 14s
Test Deploy Build (20, frontend)	1m 47s
Build (20, lti-course-manager)	1m 17s
Test Deploy Build (20, lti-course-manager)	1m 25s
Build (20, lti-dashboard)	1m 22s
Test Deploy Build (20, lti-dashboard)	1m 15s
Test (20, frontend)	4m 36s
Test (20, test-app)	2m 4s
Test (20, lti-course-manager)	1m 8s
Test (20, lti-dashboard)	1m 6s
Scan with UCSF SonarQube	0s
	20m 0s

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