fix: add invalid code list upload test

[standeren]

Description

• remove unnecessary use of string interpolation in EditOptionList.tsx.
• add test that checks if toast error is rendered when upload fails with unknown error.
• remove raw render of unhandled backend error and render generic translated error message for all cases.
• use more precise text keys for error messages.

Related Issue(s)

• #{issue number}

Verification

• Your code builds clean without any errors or warnings
• Manual testing done (required)
• Relevant automated test added (if you find this hard, leave it and we'll help out)

[codecov]

Codecov Report

Attention: Patch coverage is 90.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 95.35%. Comparing base (ab1a970) to head (47e1794).
Report is 9 commits behind head on main.

Files with missing lines	Patch %	Lines
...tions/OptionTabs/EditOptionList/EditOptionList.tsx	80.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #14170      +/-   ##
==========================================
+ Coverage   95.33%   95.35%   +0.01%     
==========================================
  Files        1783     1785       +2     
  Lines       23230    23230              
  Branches     2693     2690       -3     
==========================================
+ Hits        22147    22151       +4     
+ Misses        836      833       -3     
+ Partials      247      246       -1     

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[standeren]

Codecov Report

Attention: Patch coverage is 87.50000% with 1 line in your changes missing coverage. Please review.

Project coverage is 95.35%. Comparing base (ab1a970) to head (4e87eb0).
Report is 4 commits behind head on main.

Files with missing lines Patch % Lines
...tions/OptionTabs/EditOptionList/EditOptionList.tsx 80.00% 1 Missing ⚠️
Additional details and impacted files
☔ View full report in Codecov by Sentry. 📢 Have feedback on the report? Share it here.

We need to refactor the ServicesContext.tsx before it is possible to test this, see issue.