SDK with enableNative: true falls back to JS if native is not available

[krystofwoldrich]

Description

At the moment RN SDK throws an error when enableNative: true with Expo Go, to make DEX better we should not enforceNative but only warn about the situation and use JS as a fallback.

This is especially an improvement for Expo users and react-native-web users.

We add forceNative flag to keep the original behavior for users who want it.

[marandaneto]

Let's just flip (and log out) enableNative if it's not Android, iOS, and macOS, where the Native SDKs are not available anyway.

[github-actions]

This issue has gone three weeks without activity. In another week, I will close it.

But! If you comment or otherwise update it, I will reset the clock, and if you label it Status: Backlog or Status: In Progress, I will leave it alone ... forever!

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"A weed is but an unloved flower." ― Ella Wheeler Wilcox 🥀