Add translations for 14 more locales

[loevgaard]

Adds complete messages and validators catalogues (all 24 UI keys and 5 validator messages) for:

• Nordic: Swedish (sv), Norwegian (no), Finnish (fi) — Danish (da) already existed
• Large EU: German (de), French (fr), Spanish (es), Italian (it), Dutch (nl), Polish (pl)
• Other common Sylius locales: Portuguese (pt), Czech (cs), Hungarian (hu), Romanian (ro), Ukrainian (uk)

Notes:

• Norwegian uses the no code, matching Sylius's own catalogues (messages.no.yml). Symfony's locale fallback goes nb_NO → nb → default, so a shop configured with nb_NO will only pick this up if the app's fallback locales are set accordingly — same situation as Sylius core.
• Portuguese follows European Portuguese ("Encomenda", "Gerir"); a pt_BR variant can be added on top if needed.
• "Partner Ads" is kept as a brand name everywhere.

Verified: lint:yaml passes, every locale has exactly the English key set (scripted comparison), and the Symfony translator resolves all catalogues at runtime in the test app, including {{ compared_value }} substitution.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 84.79%. Comparing base (ed2e023) to head (dd44c9d).

Additional details and impacted files

@@            Coverage Diff            @@
##                3.x      #58   +/-   ##
=========================================
  Coverage     84.79%   84.79%           
  Complexity      104      104           
=========================================
  Files            21       21           
  Lines           546      546           
=========================================
  Hits            463      463           
  Misses           83       83           

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