fix: expose bottom sheet actions as buttons [WPB-14784]

[Garzas]

https://wearezeta.atlassian.net/browse/WPB-14784

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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

Bottom sheet action rows, such as “Move to Archive”, were exposed as clickable views without a button role in accessibility semantics.

Causes (Optional)

The shared bottom sheet items use a custom Modifier.clickable wrapper around combinedClickable, but no role was passed to the underlying semantics.

Solutions

Added optional role support to the shared clickable modifier and set Role.Button for bottom sheet menu actions.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 48.76%. Comparing base (c3f09ef) to head (168c6cb).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #4964   +/-   ##
========================================
  Coverage    48.76%   48.76%           
========================================
  Files          644      644           
  Lines        23145    23145           
  Branches      3545     3545           
========================================
  Hits         11287    11287           
  Misses       10809    10809           
  Partials      1049     1049           

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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