Fix sort descending for 1d case

[laggui]

Checklist

• Confirmed that run-checks all script has been executed.

Related Issues/PRs

Fix from previous PR #1488

Changes

Forgot to validate one edge case 🤦slight oversight on my end.

Was working on a quick implementation for topk now that sorting operations were merged and I stumbled upon this issue.

Testing

Added a unit test for sort_descending with a 1D tensor.

[nathanielsimard]

Ho well, didn't see that one either 🤦

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.79%. Comparing base (47a84cc) to head (12f5ed3).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1494      +/-   ##
==========================================
- Coverage   85.86%   85.79%   -0.08%     
==========================================
  Files         659      659              
  Lines       74082    74122      +40     
==========================================
- Hits        63612    63590      -22     
- Misses      10470    10532      +62     

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