[Feature]: add missing i18ns

[Mister-Hope]

功能概述 | Describe the feature

@vuepress/plugin-reading-time:  ⚠ it is missing it's i18n config
@vuepress/plugin-reading-time:  ⚠ pt-BR is missing it's i18n config
back-to-top:  ⚠ it is missing it's i18n config
back-to-top:  ⚠ pt-BR is missing it's i18n config
@vuepress/plugin-copy-code:  ⚠ it is missing it's i18n config
@vuepress/plugin-copy-code:  ⚠ pt-BR is missing it's i18n config
@vuepress/plugin-photo-swipe:  ⚠ it is missing it's i18n config
@vuepress/plugin-photo-swipe:  ⚠ pt-BR is missing it's i18n config
vidstack:  ⚠ it is missing it's i18n config
vidstack:  ⚠ pt-BR is missing it's i18n config
@vuepress/plugin-catalog:  ⚠ it is missing it's i18n config
@vuepress/plugin-catalog:  ⚠ pt-BR is missing it's i18n config
waline:  ⚠ it is missing it's i18n config
waline:  ⚠ pt-BR is missing it's i18n config
@vuepress/plugin-docsearch:  ⚠ it is missing it's i18n config
@vuepress/plugin-docsearch:  ⚠ pt-BR is missing it's i18n config

These i18n can be added either through theme options, or contributed to upstream.

[lizheming]

https://github.com/walinejs/waline/blob/main/packages/client/src/config/i18n/index.ts 我看 it 和 pt-br 是有的。是哪里需要适配吗？

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https://github.com/walinejs/waline/blob/main/packages/client/src/config/i18n/index.ts I see it and pt-br are available. Where does it need to be adapted?

[Mister-Hope]

我晚点再看看

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I’ll check it out later