fix(read receipt): track read receipts for focused timeline

[ganfra]

Content

What the title says.

Motivation and context

To display read receipts in focused timeline (permalink)

Screenshots / GIFs

No ui change.

Tests

• Open permalink in the past
• Check read receipts are displayed on the past timeline

Tested devices

• Physical
• Emulator
• OS version(s):

Checklist

• Changes have been tested on an Android device or Android emulator with API 24
• UI change has been tested on both light and dark themes
• Accessibility has been taken into account. See https://github.com/element-hq/element-x-android/blob/develop/CONTRIBUTING.md#accessibility
• Pull request is based on the develop branch
• Pull request title will be used in the release note, it clearly define what will change for the user
• Pull request includes screenshots or videos if containing UI changes
• You've made a self review of your PR

[github-actions]

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.

Project coverage is 80.12%. Comparing base (6aca8d3) to head (67af88d).
Report is 2 commits behind head on develop.

Files with missing lines	Patch %	Lines
...droid/libraries/matrix/impl/room/RustMatrixRoom.kt	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #4374      +/-   ##
===========================================
- Coverage    80.13%   80.12%   -0.01%     
===========================================
  Files         2058     2058              
  Lines        54794    54795       +1     
  Branches      6713     6713              
===========================================
  Hits         43907    43907              
- Misses        8591     8592       +1     
  Partials      2296     2296              

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