chore: adjust i18n docs format

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https://github.com/OneKeyHQ/app-monorepo/pull/4168

Use correct base branch(x) and change PR branch name.

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Adjust i18n related docs format, eg:

Before change:

https://github.com/OneKeyHQ/app-monorepo/blob/064fca17f01c76b26a1a6813a42cd6a7c9adc972/docs/i18n/README.zh-cn.md

After change:

https://github.com/OneKeyHQ/app-monorepo/blob/1ba3241b7d039da5dd09470633ffd6af2f2b0168/docs/i18n/README.zh-cn.md

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PR Summary

• Update of Installation Instructions The instructions for setting up Javascript dependencies and submodules have been added to the README files for German, French, Italian, Japanese, and Chinese versions. This update ensures non-English users can correctly setup the project environment.