Add aid for thread messages and added test for checking thread rendering

[Kharchevskyi]

This PR adds accessibility ids and add test for checking thread rendering, updated test after pushing new aids, added new methods for checking thread

close #1370
close #959

Tests

• Tests added or updated

---

To be filled by reviewers

I have reviewed that this PR... (tick whichever items you personally focused on during this review):

• addresses the issue it closes (if any)
• code is readable and understandable
• is accompanied with tests, or tests are not needed
• is free of vulnerabilities
• is documented clearly and usefully, or doesn't need documentation

[fcvakintos]

@tomholub I will fix the test on my branch

[tomholub]

@fcvakintos can you continue on this branch? or alternatively, close this PR but use the code in your own branch? I'm hesitant to merge a PR that doesn't pass tests.

[fcvakintos]

@tomholub ok, will continue on this branch

[tomholub]

The git history seems unhappy - we will need to do something about it before merging. Maybe squashing the history first. Otherwise not possible to review.