Adding Basic Chat Support

[KevinSchildhorn]

Details

Adding Stream Chat support for Android and iOS.

Changes

• Adding Stream library for Android and iOS
• Adding new tab for Chat (This could be changed in the future)
• Adding Compose callback for calling the stream ui from shared ui
• Adding documentation
• Automatically signing the user into the messaging general` channel

	Android	iOS
compose	Screen_recording_20240404_113702.webm
Swift UI	N/A