🐛 fix: fix normalize russian locale

[MillerTGr]

💻 变更类型 | Change Type

• ✨ feat
• 🐛 fix
• ♻️ refactor
• 💄 style
• 🔨 chore
• ⚡️ perf
• 📝 docs

🔀 变更说明 | Description of Change

Normalize the locale handling to always return the expected ru-RU name.

📝 补充信息 | Additional Information

In some browsers, the locale is returned as ru instead of ru-RU, resulting in an error: Error: Cannot find module './ru.js'.
The function should ensure that it always returns ru-RU, regardless of these discrepancies.

[vercel]

@MillerTGr is attempting to deploy a commit to the LobeHub Team on Vercel.

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[lobehubbot]

👍 @MillerTGr

Thank you for raising your pull request and contributing to our Community
Please make sure you have followed our contributing guidelines. We will review it as soon as possible.
If you encounter any problems, please feel free to connect with us.
非常感谢您提出拉取请求并为我们的社区做出贡献，请确保您已经遵循了我们的贡献指南，我们会尽快审查它。
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[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 90.35%. Comparing base (04d8e53) to head (b19855d).
Report is 90 commits behind head on main.

Files	Patch %	Lines
src/locales/resources.ts	50.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1903      +/-   ##
==========================================
- Coverage   92.57%   90.35%   -2.22%     
==========================================
  Files         239      248       +9     
  Lines       13066    14325    +1259     
  Branches     1562      966     -596     
==========================================
+ Hits        12096    12944     +848     
- Misses        970     1381     +411     

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[lobehubbot]

❤️ Great PR @MillerTGr ❤️

The growth of project is inseparable from user feedback and contribution, thanks for your contribution! If you are interesting with the lobehub developer community, please join our discord and then dm @arvinxx or @canisminor1990. They will invite you to our private developer channel. We are talking about the lobe-chat development or sharing ai newsletter around the world.
项目的成长离不开用户反馈和贡献，感谢您的贡献! 如果您对 LobeHub 开发者社区感兴趣，请加入我们的 discord，然后私信 @arvinxx 或 @canisminor1990。他们会邀请您加入我们的私密开发者频道。我们将会讨论关于 Lobe Chat 的开发，分享和讨论全球范围内的 AI 消息。

[lobehubbot]

🎉 This PR is included in version 0.145.13 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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