🧪 [Add tests for localize_boards]

[marko1olo]

🎯 What: Missing tests for localize_boards function.
📊 Coverage: Covered happy paths with dict descriptions, fallback order, string descriptions, and non-string/non-dict descriptions.
✨ Result: Increased test coverage for localize_boards.

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PR created automatically by Jules for task 17605734006801115121 started by @marko1olo

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