v2.3.2

1. Use singleton mode for initialization
2. Add audio and video listener for Android service
3. Start heartbeat thread for press
4. Add message synchronization callback OnSyncServerStart()/OnSyncServerFinish()
5. Synchronize number of unread messages between multiple terminals
6. fix bug: database is closed
7. fix bug: OnKickedOffline callback twice
8. fix bug: The groupID does not take effect when getting group member userIDList
9. fix bug: Set SuperGroupIDList in doMaxSeq function
10. fix bug: Set organization listener for Jssdk server
11. fix bug: Synchronizes the latest messages in the group Domaxseq function
12. fix bug: Deadlock occurred when synchronizing data in the login phase