fix: empty conversation list on import media [WPB-10483]

[Garzas]

WPB-10483 [Android] empty conversation list when sharing image using sharing extention

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PR Submission Checklist for internal contributors

• The PR Title

  • conforms to the style of semantic commits messages¹ supported in Wire's Github Workflow²
  • contains a reference JIRA issue number like SQPIT-764
  • answers the question: If merged, this PR will: ... ³

• The PR Description

  • is free of optional paragraphs and you have filled the relevant parts to the best of your ability

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What's new in this PR?

Issues

• updating conversation list was not executed on main dispatcher
• updating same state from different observers may cause race condition

Causes (Optional)

Random empty conversation list

Solutions

• Introduce separate state for avatar asset
• update conversation list on main dispatcher

[sonarqubecloud]

Please retry analysis of this Pull-Request directly on SonarCloud

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 6 lines in your changes missing coverage. Please review.

Project coverage is 44.75%. Comparing base (72616dc) to head (cfdc183).
Report is 321 commits behind head on release/candidate.

Files with missing lines	Patch %	Lines
...id/ui/sharing/ImportMediaAuthenticatedViewModel.kt	0.00%	6 Missing ⚠️

Additional details and impacted files

@@                Coverage Diff                 @@
##           release/candidate    #3400   +/-   ##
==================================================
  Coverage              44.75%   44.75%           
==================================================
  Files                    456      456           
  Lines                  15404    15404           
  Branches                2574     2574           
==================================================
  Hits                    6894     6894           
  Misses                  7783     7783           
  Partials                 727      727           

Files with missing lines	Coverage Δ
...id/ui/sharing/ImportMediaAuthenticatedViewModel.kt	0.00% <0.00%> (ø)

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