ci: Add language mappings to crowdin.yml

[teolemon]

What

• ci: Add language mappings to crowdin.yml

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 46.42%. Comparing base (fc808a6) to head (384b48b).
⚠️ Report is 15 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main     #368   +/-   ##
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  Coverage     46.42%   46.42%           
  Complexity       58       58           
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  Files            16       16           
  Lines           420      420           
  Branches         43       43           
=========================================
  Hits            195      195           
  Misses          197      197           
  Partials         28       28           

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[Copilot]

Pull request overview

Adds Crowdin language code mappings in crowdin.yml to control how localized translation files are named when syncing translations into src/messages/.

Changes:

• Introduces languages_mapping for %two_letters_code% to map specific Crowdin locales (e.g. pt-BR, zh-CN) to custom output codes (e.g. pt_BR, zh_CN).
• Adds mappings for several regional variants (Portuguese, Chinese, English, Dutch, Serbian, Kurdish).

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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Keep base locales mapped to two-letter bundles

Do not remap base language codes (nl, sr, ku) to regional filenames here: this changes Crowdin export targets from messages_<lang>.properties to files like messages_nl_NL.properties/messages_sr_RS.properties/messages_kmr_TR.properties. In this repo, supported locales are still the base codes (see runtime-scripts/realm_settings_template.json), and message generation/lookup paths are built around messages_${code}.properties (see build-scripts/refresh_messages.mjs), so future Crowdin syncs will stop updating the files actually used for those locales.

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