feat: add android impl for new prefs library #135

Job	Run time
packages/npm/financekit / build-library	31s
packages/npm/financekit / build-ios	1m 15s
packages/npm/financekit / build-android	1m 17s
packages/npm/financekit / lint	43s
packages/npm/prefs / build-android	1m 0s
packages/npm/financekit / test	36s
packages/npm/prefs / build-ios	1m 9s
packages/npm/prefs / build-library	32s
packages/npm/prefs / lint	39s
packages/npm/prefs / test	30s
packages/npm/send / build-android	1m 28s
packages/npm/send / build-ios	1m 21s
packages/npm/send / lint	31s
packages/npm/send / build-library	34s
packages/npm/send / test	33s
	12m 39s

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