更新汉语-简体中文内容

[fr1g]

PR-Codex overview

The focus of this PR is to update and add content related to LauncherX features, network settings, and issue reporting. It also includes styling changes in the custom CSS.

Detailed summary

• Added content about LauncherX features, network settings, and issue reporting in Chinese
• Updated network settings options and instructions
• Included guidance on using logs for issue reporting
• Styling changes in custom CSS for VitePress pages

The following files were skipped due to too many changes: zhCN/lxguide/others/report-with-logs.md, zhCN/lxguide/others/download-jre.md, zhCN/lxguide/startup/index.md, .vitepress/sideBar/zhCN.ts, zhCN/lxguide/features/modpack-support.md, zhCN/lxguide/others/general.md, zhCN/lxguide/settings/item/global.md, zhCN/lxguide/others/adjust-ram-gc-ja.md

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[fr1g]

我怎么不能approve我自己

[fr1g]

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