[FSSDK-11238] Test conversions notification_center and utils (#1020) #1099

Job	Run time
crossbrowser_and_umd_unit_tests	6h 0m 18s
lint	1m 16s
unit_tests (16)	2m 0s
unit_tests (18)	1m 51s
unit_tests (20)	1m 40s
unit_tests (22)	1m 37s
fullstack_production_suite / test	4s
lint_markdown_files / lint	54s
integration_tests / test	7s
Coveralls coverage	2s
	6h 9m 49s

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