feat(OnyxHeadline): support `showAs` property #6029

Job	Run time
Build and Cache	56s
Check code quality	2m 53s
Component tests / Playwright shard (1)	5m 44s
Component tests / Playwright shard (2)	6m 39s
Component tests / Playwright shard (3)	7m 28s
Component tests / Playwright shard (4)	7m 1s
Component tests / Playwright shard (5)	7m 14s
Component tests / Playwright shard (6)	6m 17s
Component tests / Playwright shard (7)	5m 23s
Component tests / Playwright shard (8)	8m 14s
Component tests / Playwright shard (9)	5m 20s
Component tests / Playwright shard (10)	6m 22s
Component tests / Playwright shard (11)	3m 37s
Component tests / Playwright shard (12)	6m 39s
Component tests / Playwright shard (13)	5m 32s
Component tests / Playwright shard (14)	5m 41s
Component tests / Playwright shard (15)	6m 33s
Component tests / Playwright shard (16)	3m 52s
Component tests / Collect Playwright result	39s
	1h 42m 4s

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