fix: structure fuel sort not working (#302)

[ErikKalkoken]

Resolves #302

[codecov]

Codecov Report

❌ Patch coverage is 20.00000% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 38.8%. Comparing base (42ffd34) to head (ca24b78).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/app/ui/corporationstructures.go	20.0%	4 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##            main    #305     +/-   ##
=======================================
- Coverage   38.8%   38.8%   -0.1%     
=======================================
  Files        223     223             
  Lines      38573   38574      +1     
=======================================
  Hits       15002   15002             
- Misses     21673   21674      +1     
  Partials    1898    1898             

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