export the crypto-utils from the SDK because the new fetch-image serv…

…ice needs it (#692)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit


- **New Features**
- Enhanced the SDK by adding cryptographic utility functions for
improved functionality.
- Introduced the `useReaction` hook to the React SDK, providing new
capabilities for developers.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/react-sdk/src/index.ts

@@ -8,6 +8,7 @@ export * from './useCreateChannel'
 export * from './useCreateSpace'
 export * from './useJoinSpace'
 export * from './useObservable'
+export * from './useReaction'
 export * from './useRiver'
 export * from './useRiverAuthStatus'
 export * from './useRiverConnection'

packages/sdk/src/index.ts

@@ -4,13 +4,15 @@
 export * from './check'
 export * from './client'
 export * from './clientDecryptionExtensions'
+export * from './crypto_utils'
 export * from './encryptedContentTypes'
 export * from './id'
 export * from './makeRiverRpcClient'
 export * from './makeStreamRpcClient'
 export * from './migrations/migrateSnapshot'
 export * from './migrations/snapshotMigration0000'
 export * from './migrations/snapshotMigration0001'
+export * from './migrations/snapshotMigration0002'
 export * from './observable/observable'
 export * from './observable/persistedObservable'
 export * from './persistenceStore'