Add i18n for most pages

[weareoutman]

Description

This PR adds i18n for almost all pages, while #1576 introduced i18next but never progressed on again.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings

[github-actions]

All contributors have signed the CLA ✍️ ✅
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[weareoutman]

I have read the CLA Document and I hereby sign the CLA

[github-actions]

Preview: https://2747--pr-cinny.netlify.app
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[weareoutman]

It is not fully done yet, and it evolves lots of file changes, let me know if this contribution makes sense for you, or how can I make it more reviewable.

[ajbura]

Hey @weareoutman, it largely looks good. can we have an option in settings to change the language to test so we can switch it without totally depending on system wide language change. And also can track the progress of what has/not been translated in issue

[weareoutman]

Added the language option in settings > general:

Except for this, it should only contains translation changes, and now translation should cover most pages.

[weareoutman]

Rebased and ready for review 🍻

[Stealthii]

Added the language option in settings > general:

Except for this, it should only contains translation changes, and now translation should cover most pages.

top option should be System setting, and the default.

There's also some odd decisions about fields to translate, such as dialog.userIdPlaceholder (which was "@username:server", but now "@用户名:服务器" in your zh changes.

Did you perform these translations yourself, or use assistive tooling?

[Stealthii]

@weareoutman Personal opinion here - I would separate the implementation of i18n support from a PR with your translations to another language. These are two separate things to review and fall under different scrutiny, besides until it's decided what should be translated, performing translations may waste work.

[weareoutman]

top option should be System setting, and the default.

From my experience, most websites and apps don't offer the 'System setting' option for language.

Edit: i18next-browser-languagedetector will make it auto select the actual system setting language at initial.

There's also some odd decisions about fields to translate, such as dialog.userIdPlaceholder (which was "@username:server", but now "@用户名:服务器" in your zh changes.

It's a placeholder, so I think translation here is reasonable.

Did you perform these translations yourself, or use assistive tooling?

Yes, changes are massive, so I have to use some tools, but all with careful manual review and corrections.

I would separate the implementation of i18n support from a PR with your translations to another language.

I agree with that, but the initial i18n support was already done in #1576 , this PR only introduces translations and a language selection in settings panel.

@Stealthii Thanks for your advice.

[weareoutman]

@ajbura Congrats on your newly release which supports Voice/Video calls, that's a great work.

Do you have time to review this? I'll rebase it once you'd like to review, since the chance of conflicts is high for each new commits on the main branch.

[ajbura]

@weareoutman Thanks you for the support!

While it looks good overall. I can not review the zh.json file as I do not know the language. As said by other contributor I also think it would be a good idea to have zh change as a new PR so we can ask other community member who are speaker of language for review without blocking the translation support changes.