feat(NavExpandable): allow option to pass an icon (#12444) #3086

Job	Run time
CI / Build	2m 23s
CI / Lint	1m 17s
Documentation / check-permissions / check	-1s
Documentation / Build, test & deploy	0s
CI / Build demo app	2m 44s
CI / Unit tests	4m 9s
CI / Integration tests (1)	3m 45s
CI / Integration tests (4)	3m 51s
CI / Integration tests (3)	4m 8s
CI / Integration tests (2)	4m 6s
CI / Integration tests (0)	4m 7s
Deploy release	0s
	30m 29s

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