ksearch: add cloudChoice support to theme #2503

Job	Run time
nonce	1s
call_snapshots_iframe / percy_snapshots	4m 1s
call_snapshots_rtl / percy_snapshots	3m 46s
call_snapshots_default / percy_snapshots	4m 6s
call_snapshots_spanish / percy_snapshots	3m 44s
	15m 38s

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