Add expo-sqlite/kv-store persist plugin

[catalinmiron]

Add expo-sqlite/kv-store to the persist plugins list.

More about the [expo-sqlite/kv-store])(https://docs.expo.dev/versions/latest/sdk/sqlite/#key-value-storage)

[jmeistrich]

This looks great! I wonder about a couple of things:

1. I don't think it needs the complexity of configuring sqliteStorage. That's on the AsyncStorage plugin because there's multiple implementations of it out there, since it was split from core to a community library. But since there's only one kv-store we can just import it directly.

2. Because kv-store supports synchronous usage, I think we can simplify the plugin a lot. The initialize and loadTable functions are for preloading all data so that getTable can be synchronous. But since kv-store has getItemSync I think you could just use that in getTable, and just remove initialize and loadTable. Check out the mmkv and local storage plugins for examples of synchronous persist plugins.

Does that make sense? Please let me know if I can help with anything!

[jmeistrich]

Hey @catalinmiron do you want to look into those changes and then we can merge this in? Or if you're too busy I can make those changes on top of the PR and go for merge. I'm very excited to get this in!