feat: Add Kazakh (kk) language support (#1377)

## Summary

* **What is the goal of this PR?** Implements Kazakh language
* **What changes are included?**

## Additional Context

* Add any other information that might be helpful for the reviewer
(e.g., performance implications, potential risks,
  specific areas to focus on).

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### AI Usage

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Did you use AI tools to help write this code?  YES

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Co-authored-by: Okzhetpes <okhzetpes.20@gmail.com>

scripts/gen_i18n.py

@@ -223,6 +223,7 @@ LANG_ABBREVIATIONS = {
     "فارسی": "FA", "persian": "FA",
     "čeština": "CS",
     "türkçe": "TR", "turkish": "TR",
+    "Қазақша": "KK", "kazakh": "KK",
 }