When a background SDK task fails, react in the client

[jmartinesp]

Content

Implement RustClientSessionDelegate.onBackgroundTaskErrorReport:

• For initialization issues or errors, we just print and report them.
• For panics (unrecoverable errors) we also crash the app.

Motivation and context

React to issues in the SDK, parity with iOS.

Tests

You can't really test it unless you trigger one of those issues or modify the code to manually fail.

Tested devices

• Physical
• Emulator
• OS version(s): 16

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

[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

[github-actions]

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[codecov]

Codecov Report

❌ Patch coverage is 96.00000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 81.37%. Comparing base (6c046fc) to head (fe9c43d).
⚠️ Report is 19 commits behind head on develop.

Files with missing lines	Patch %	Lines
...braries/matrix/impl/core/SdkBackgroundTaskError.kt	91.66%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #6166   +/-   ##
========================================
  Coverage    81.37%   81.37%           
========================================
  Files         2569     2570    +1     
  Lines        69700    69723   +23     
  Branches      8963     8968    +5     
========================================
+ Hits         56715    56739   +24     
+ Misses        9650     9649    -1     
  Partials      3335     3335           

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[bmarty]

LGTM, thanks!