Implement improved rendering for threads in the main timeline

[janogarcia]

Changelog

Root messages should form a standalone group with their respective thread summaries.

This way, we establish a clear relationship between the thread summary and the root message it belongs to. Failure to do it results in an ambiguous relationship that only gets worse when message bubbles are enabled.

Source

→ https://www.figma.com/file/T309ztx0sNyOOK6NKVLHsK/Threads?node-id=3085%3A305790

Snapshot

[janogarcia]

I've updated the issue description and mockup for better clarity on what the expected rendering should be. 👍

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Current implementation is close to it but not there yet.

The thread should have been rendered in a standalone group that doesn't include the fourth message.

[ariskotsomitopoulos]

Thanks for pointing this out, now its much more clear

[novocaine]

@janogarcia please review and close if you're happy

[janogarcia]

@ariskotsomitopoulos Hadn't worked for me so far. Updating to the latest Beta 1.4.16 (released yesterday) did the trick. Everything's looking fine now. Thanks! 👍