PM-25908: Do not use network error message from 401

[david-livefront]

🎟️ Tracking

PM-25908

📔 Objective

This PR fixes a bug where the error message from the raw exception is being displayed to the user.

📸 Screenshots

Before	After

⏰ Reminders before review

• Contributor guidelines followed
• All formatters and local linters executed and passed
• Written new unit and / or integration tests where applicable
• Protected functional changes with optionality (feature flags)
• Used internationalization (i18n) for all UI strings
• CI builds passed
• Communicated to DevOps any deployment requirements
• Updated any necessary documentation (Confluence, contributing docs) or informed the documentation team

🦮 Reviewer guidelines

• 👍 (:+1:) or similar for great changes
• 📝 (:memo:) or ℹ️ (:information_source:) for notes or general info
• ❓ (:question:) for questions
• 🤔 (:thinking:) or 💭 (:thought_balloon:) for more open inquiry that's not quite a confirmed issue and could potentially benefit from discussion
• 🎨 (:art:) for suggestions / improvements
• ❌ (:x:) or ⚠️ (:warning:) for more significant problems or concerns needing attention
• 🌱 (:seedling:) or ♻️ (:recycle:) for future improvements or indications of technical debt
• ⛏ (:pick:) for minor or nitpick changes

[github-actions]

Checkmarx One – Scan Summary & Details – 47e47081-13ab-4b1c-9081-401197121886

Great job! No new security vulnerabilities introduced in this pull request

[codecov]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 84.57%. Comparing base (202dd65) to head (28e4553).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
...twarden/data/auth/repository/AuthRepositoryImpl.kt	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5984      +/-   ##
==========================================
- Coverage   84.57%   84.57%   -0.01%     
==========================================
  Files         717      717              
  Lines       54544    54544              
  Branches     7511     7511              
==========================================
- Hits        46133    46132       -1     
  Misses       5781     5781              
- Partials     2630     2631       +1     

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[david-livefront]

Thanks @SaintPatrck