Chinese translation key wrong in docs

[Lutra-Fs]

Describe the bug
A clear and concise description of what the bug is.
After traditional Chinese translation introduced to the project, the translation key for Chinese is now zh-CN(Simplified Chinese) or zh-TW(Traditional Chinese) instead of zh. Old 'zh' key doesn't work anymore.

To Reproduce
Steps to reproduce the behavior:

1. Go to 'config.yml'
2. Set the language key to 'zh'
3. Start lazygit
4. Lazygit returns "language not found"

Expected behavior
A clear and concise description of what you expected to happen.
Load Chinese translation

Screenshots
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Version info:
Run lazygit --version and paste the result here
Run git --version and paste the result here

Additional context
Add any other context about the problem here.
There is a PR #2842 relates to that.

Note: please try updating to the latest version or manually building the latest master to see if the issue still occurs.

[lucky51]

I set up language: 'zh-CN' for config.yml on windows11 .lazygit can run but show below.

[Lutra-Fs]

I set up language: 'zh-CN' for config.yml on windows11 .lazygit can run but show below.

You already set the language to Chinese, please see this issue #2741 for the CJK character display issue