chore(i18n): refactor and cleanup (#805)

* checkpoint

* finish

* docs

docs/advanced/making plugins.md

@@ -278,7 +278,7 @@ export const ContentPage: QuartzEmitterPlugin = () => {
           allFiles,
         }
 
-        const content = renderPage(slug, componentData, opts, externalResources)
+        const content = renderPage(cfg, slug, componentData, opts, externalResources)
         const fp = await emit({
           content,
           slug: file.data.slug!,

docs/configuration.md

@@ -27,6 +27,7 @@ This part of the configuration concerns anything that can affect the whole site.
   - `null`: don't use analytics;
   - `{ provider: 'plausible' }`: use [Plausible](https://plausible.io/), a privacy-friendly alternative to Google Analytics; or
   - `{ provider: 'google', tagId: <your-google-tag> }`: use Google Analytics
+- `locale`: used for [[i18n]] and date formatting
 - `baseUrl`: this is used for sitemaps and RSS feeds that require an absolute URL to know where the canonical 'home' of your site lives. This is normally the deployed URL of your site (e.g. `quartz.jzhao.xyz` for this site). Do not include the protocol (i.e. `https://`) or any leading or trailing slashes.
   - This should also include the subpath if you are [[hosting]] on GitHub pages without a custom domain. For example, if my repository is `jackyzha0/quartz`, GitHub pages would deploy to `https://jackyzha0.github.io/quartz` and the `baseUrl` would be `jackyzha0.github.io/quartz`
   - Note that Quartz 4 will avoid using this as much as possible and use relative URLs whenever it can to make sure your site works no matter _where_ you end up actually deploying it.

docs/features/i18n.md

@@ -0,0 +1,18 @@
+---
+title: Internationalization
+---
+
+Internationalization allows users to translate text in the Quartz interface into various supported languages without needing to make extensive code changes. This can be changed via the `locale` [[configuration]] field in `quartz.config.ts`.
+
+The locale field generally follows a certain format: `{language}-{REGION}`
+
+- `{language}` is usually a [2-letter lowercase language code](https://en.wikipedia.org/wiki/List_of_ISO_639_language_codes).
+- `{REGION}` is usually a [2-letter uppercase region code](https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2)
+
+> [!tip] Interested in contributing?
+> We [gladly welcome translation PRs](https://github.com/jackyzha0/quartz/tree/v4/quartz/i18n/locales)! To contribute a translation, do the following things:
+>
+> 1. In the `quartz/i18n/locales` folder, copy the `en-US.ts` file.
+> 2. Rename it to `{language}-{REGION}.ts` so it matches a locale of the format shown above.
+> 3. Fill in the translations!
+> 4. Add the entry under `TRANSLATIONS` in `quartz/i18n/index.ts`.

docs/index.md

@@ -31,7 +31,7 @@ If you prefer instructions in a video format you can try following Nicole van de
 
 ## 🔧 Features
 
-- [[Obsidian compatibility]], [[full-text search]], [[graph view]], note transclusion, [[wikilinks]], [[backlinks]], [[Latex]], [[syntax highlighting]], [[popover previews]], [[Docker Support]], and [many more](./features) right out of the box
+- [[Obsidian compatibility]], [[full-text search]], [[graph view]], note transclusion, [[wikilinks]], [[backlinks]], [[Latex]], [[syntax highlighting]], [[popover previews]], [[Docker Support]], [[i18n|internationalization]] and [many more](./features) right out of the box
 - Hot-reload for both configuration and content
 - Simple JSX layouts and [[creating components|page components]]
 - [[SPA Routing|Ridiculously fast page loads]] and tiny bundle sizes