[PBE-3749] Implement ChatClient::markThreadRead operation.

[VelikovPetar]

🎯 Goal

Implement the ChatClient.markThreadRead operation. It will be used as part of the whole Threads V2 implementation.

🛠 Implementation details

• Extend the MarkReadRequest with thread_id filed (as per the api documentation)
• Implement new markThreadRead (similar to markMessageRead) methods on ChatClient and ChannelClient

🎨 UI Changes

NA

🧪 Testing

Currently not used

☑️Contributor Checklist

General

• I have signed the Stream CLA (required)
• Assigned a person / code owner group (required)
• Thread with the PR link started in a respective Slack channel (#android-chat-core or #android-chat-ui) (required)
• PR targets the develop branch
• PR is linked to the GitHub issue it resolves

Code & documentation

• Changelog is updated with client-facing changes
• New code is covered by unit tests
• Comparison screenshots added for visual changes
• Affected documentation updated (KDocs, docusaurus, tutorial)

☑️Reviewer Checklist

• UI Components sample runs & works
• Compose sample runs & works
• UI Changes correct (before & after images)
• Bugs validated (bugfixes)
• New feature tested and works
• Release notes and docs clearly describe changes
• All code we touched has new or updated KDocs

🎉 GIF

Please provide a suitable gif that describes your work on this pull request

[JcMinarro]

Previously, this method accept empty messageId to mark the full channel as read, in another case mark the channel read until the messageId.

Now that it contains an extra argument (threadId) it is a bit confusing what it will does if, for example, we pass a messageId and a threadId...

It would be better to have a new markThreadRead() and then extract common logic on the MoshiChatApi to reuse whatever is needed