fix: hmr issue due to disconnect

[santhoshvai]

🎯 Goal

During hot module reload, the app may throw the following error

 ERROR  Error: You can't use a channel after client.disconnect() was called

This error is located at:
    in ChannelPreviewMessengerWithContext (created by ChannelPreviewMessenger{channelPreview})
    in ChannelPreviewMessenger{channelPreview} (created by ChannelPreviewWithContext)
    in ChannelPreviewWithContext (created by ChannelPreview)

the HMR error was because the channel preview component rerendered during HMR of a global variable. This doesn't happen in our sample apps, but our awesome customer had made a repro at https://github.com/farmstrong8/stream-chat-rn-render

My theory is that due to some specific usage of react navigation the component rerenders.

But anyway we should not break HMRs.

After this fix, if the customer doesn't rerender the channel list after disconnect this error shouldn't happen. If customers render this error makes sense anyway.

🛠 Implementation details

NA

🎨 UI Changes

NA

☑️ Checklist

• I have signed the Stream CLA (required)
• PR targets the develop branch
• Documentation is updated
• New code is tested in main example apps, including all possible scenarios
  • SampleApp iOS and Android
  • Expo iOS and Android

[stream-ci-bot]

🎉 This PR is included in version 5.15.3 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot 📦🚀