Upgrade dexie, remove DB versioning

[rygine]

Summary

With Dexie@v4, DB versions no longer need to be updated when the schema changes.

More info here: https://github.com/dexie/Dexie.js/releases/tag/v4.0.1

This may resolve #215.

Other changes

• Removed CachedMessageWithId and CachedConversationWithId types
• Refactored cached conversation and message types

Since these changes remove the dbVersion prop from the XMTPProvider component and some exports, they are breaking and will require a major release.

[changeset-bot]

🦋 Changeset detected

Latest commit: 85802e8

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@xmtp/react-sdk	Major

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[neekolas]

Curious what Dexie does now when we update the schema if the version flag is gone
Wait. You linked to a resource that explains everything