feat(core): `DropdownOpen` focus item in dropdown upon opening #3085

Job	Run time
Build demo	4m 8s
playwright / (1 of 9)	4m 59s
playwright / (2 of 9)	8m 7s
playwright / (3 of 9)	7m 46s
playwright / (4 of 9)	4m 25s
playwright / (5 of 9)	4m 36s
playwright / (6 of 9)	3m 27s
playwright / (7 of 9)	2m 21s
playwright / (8 of 9)	2m 48s
playwright / (9 of 9)	2m 33s
Playwright E2E Tests matrix result	1s
E2E result	0s
	45m 11s

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