feat: replace languages api with languages from distribution

[MykhailoNester]

• replace languages api with languages from distribution;
• update logic for supported languages and remove deprecated models;
• add new tests;

---

Note

Moves language metadata to distribution-provided languages.json and introduces a map-based SupportedLanguages.

• Replace LanguagesInfo and related models/mappers with SupportedLanguages (code -> LanguageDetails); remove deprecated classes
• Fetch languages via CrowdinDistributionApi.getLanguages and update usages in Crowdin, StringDataRemoteRepository, TranslationDataRepository, MappingRepository
• Add cached lookup in DataManager using CachedLanguages keyed by SyncData.timestamp
• Simplify locale matching by removing custom-languages path; update getMatchedCode
• Remove CrowdinApi.getLanguagesInfo; adjust API interfaces accordingly
• Update example SettingsFragment to new API and add/modify unit tests for languages fetch and cache behavior

^{Written by Cursor Bugbot for commit 8af81ae. This will update automatically on new commits. Configure here.}

[codecov]

Codecov Report

❌ Patch coverage is 77.19298% with 13 lines in your changes missing coverage. Please review.
✅ Project coverage is 57.94%. Comparing base (5fbd84f) to head (8af81ae).

Files with missing lines	Patch %	Lines
.../platform/data/remote/TranslationDataRepository.kt	68.43%	2 Missing and 4 partials ⚠️
...platform/data/remote/StringDataRemoteRepository.kt	57.15%	2 Missing and 1 partial ⚠️
...crowdin/platform/data/remote/CrowdingRepository.kt	77.78%	0 Missing and 2 partials ⚠️
...wdin/src/main/java/com/crowdin/platform/Crowdin.kt	0.00%	1 Missing ⚠️
...n/platform/realtimeupdate/RealTimeUpdateManager.kt	0.00%	1 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             master     #330       +/-   ##
=============================================
+ Coverage          0   57.94%   +57.94%     
- Complexity        0      403      +403     
=============================================
  Files             0       58       +58     
  Lines             0     1790     +1790     
  Branches          0      320      +320     
=============================================
+ Hits              0     1037     +1037     
- Misses            0      529      +529     
- Partials          0      224      +224     

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