Add extra logs to help debug session restoration failures

[jmartinesp]

Type of change

• Feature
• Bugfix
• Technical
• Other :

Content

Logs the error returned from the Rust SDK when the session can't be restored.

Motivation and context

This would make finding out the exact cause of restoration issues easier.

Tested devices

• Physical
• Emulator
• OS version(s): 11

Checklist

• Changes have been tested on an Android device or Android emulator with API 23
• UI change has been tested on both light and dark themes
• Accessibility has been taken into account. See https://github.com/vector-im/element-x-android/blob/develop/CONTRIBUTING.md#accessibility
• Pull request is based on the develop branch
• Pull request includes a new file under ./changelog.d. See https://github.com/vector-im/element-x-android/blob/develop/CONTRIBUTING.md#changelog
• Pull request includes screenshots or videos if containing UI changes
• Pull request includes a sign off
• You've made a self review of your PR

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[codecov]

Codecov Report

Attention: 1 lines in your changes are missing coverage. Please review.

Comparison is base (5f85707) 63.64% compared to head (e371a7f) 63.64%.
Report is 2 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #1701   +/-   ##
========================================
  Coverage    63.64%   63.64%           
========================================
  Files         1267     1267           
  Lines        32881    32881           
  Branches      6809     6809           
========================================
  Hits         20928    20928           
  Misses        8805     8805           
  Partials      3148     3148           

Files	Coverage Δ
...o/element/android/appnav/di/MatrixClientsHolder.kt	77.14% <0.00%> (ø)

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[github-actions]

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