feat: add android impl for new prefs library #139

Job	Run time
packages/npm/financekit / build-ios	1m 19s
packages/npm/financekit / build-library	45s
packages/npm/financekit / build-android	1m 22s
packages/npm/financekit / lint	39s
packages/npm/financekit / test	1m 6s
packages/npm/prefs / build-android	2m 55s
packages/npm/prefs / build-ios	13m 14s
packages/npm/prefs / build-library	39s
packages/npm/prefs / lint	40s
packages/npm/send / build-ios	14m 10s
packages/npm/prefs / test	30s
packages/npm/send / build-android	1m 59s
packages/npm/send / build-library	31s
packages/npm/send / lint	34s
packages/npm/send / test	30s
	40m 53s

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