[PUI] fix missing key in currency table

[matmair]

The currency table in the AdminCenter is missing an accessor - this sometimes throws errors when returning to the tab after a while.

[netlify]

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Lighthouse	1 paths audited Performance: 99 (🔴 down 1 from production) Accessibility: 86 (no change from production) Best Practices: 92 (no change from production) SEO: 70 (no change from production) PWA: - View the detailed breakdown and full score reports

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 83.52%. Comparing base (0c63e50) to head (4c05753).
Report is 309 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7953      +/-   ##
==========================================
+ Coverage   83.49%   83.52%   +0.02%     
==========================================
  Files        1130     1130              
  Lines       50470    50470              
  Branches     1755     1755              
==========================================
+ Hits        42138    42153      +15     
+ Misses       7878     7863      -15     
  Partials      454      454              

Flag	Coverage Δ
pui	65.54% <ø> (+0.18%)	⬆️

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