fix: change quotedMessage type to MessageType or undefined

[khushal87]

🎯 Goal

Change quoted message state from boolean | message type to message type | undefined to improve code.

🛠 Implementation details

🎨 UI Changes

iOS

Before	After

Android

Before	After

🧪 Testing

☑️ 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