feat(rewards): show benefits count on preview header (#30063) #1289

Job	Run time
Expo dev build (main-dev-expo) / prepare	1m 27s
Expo dev build (main-dev-expo) / update-build-version	-1s
Expo dev build (main-dev-expo) / Setup Dependencies (ios) / Setup Node Modules (ios)	4m 32s
Expo dev build (main-dev-expo) / Setup Dependencies (android) / Setup Node Modules (android)	2m 58s
Expo dev build (main-dev-expo) / build (ios)	33m 6s
Expo dev build (main-dev-expo) / build (android)	12m 38s
Expo dev build (main-dev-expo) / Emit build metadata	18s
	54m 58s

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