[native] Fix MediaGalleryKeyboard for Android 10
[native] Fix MediaGalleryKeyboard for Android 10

Summary: We need to specify [this](https://developer.android.com/training/data-storage/use-cases#opt-out-scoped-storage) to make `expo-media-library` paths work on Android 10. Found this out on [this issue](https://github.com/expo/expo/issues/11211).

Test Plan: See if media renders in Android 10 emulator

Reviewers: atul, palys-swm

Reviewed By: atul

Subscribers: KatPo, zrebcu411, Adrian, subnub

Differential Revision: https://phabricator.ashoat.com/D924

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