Add i18n support and translation for zh-CN

[Sevichecc]

Relative issue: #223

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Name	Status	Preview	Comments	Updated (UTC)
bracket	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Dec 28, 2023 4:39pm

[evroon]

Cool! Thanks a lot for this, it's very useful

I noticed the build fails:

Do you know what might be the problem? Otherwise, I can also look into that in a few days

[Sevichecc]

Cool! Thanks a lot for this, it's very useful

I noticed the build fails:

Do you know what might be the problem? Otherwise, I can also look into that in a few days

It might be something wrong with the position of the translation hook, I will try to fix this a bit later.

[evroon]

It might also be that Next is trying to build the site with server-side rendering, you could try adding these lines from the docs:

https://react.i18next.com/latest/ssr#setting-the-i18next-instance-based-on-req

[Sevichecc]

It might also be that Next is trying to build the site with server-side rendering, you could try adding these lines from the docs:

https://react.i18next.com/latest/ssr#setting-the-i18next-instance-based-on-req

The error is quite straightforward, which I encountered during development but didn't give it enough attention. The error was caused by the incorrect placement of the useTranslation hook; it should not be used outside of a functional component.

Additionally, some pages did not render the translation correctly, so I've implemented some fixes for that.

[evroon]

Awesome work!

Translations look good to me overall, I have only small comments.
Could you also cherry-pick these commits onto this branch?
c49a99d
4201d52

The first one fixes yarn build which fails now because this placeholder parameter isn't allowed anymore apparently. The second just fixes formatting. After that, CI will pass.

[Sevichecc]

Looks like the login page is broken, I will fix this tomorrow.

[evroon]

@Sevichecc there is this error now:

do you want to fix it or shall I finish this PR?

[Sevichecc]

@evroon I have committed a fix for that error, maybe I should try to build locally before committing.

[evroon]

Thanks a lot again, let's merge this