feat: Adding support for i18n (closes #462) (#738)

* fix: alt error mix with height/width

More granular detection of alt and resize in image

* fix: format

* feat: init i18n

* feat: add translation

* style: prettier for test

* fix: build-up the locale to fusion with dateLocale

* style: run prettier

* remove cursed file

* refactor: remove i18n library and use locale way instead

* format with prettier

* forgot to remove test

* prevent merging error

* format

* format

* fix: allow string for locale
- Check during translation if valid / existing locale
- Allow to use "en" and "en-US" for example
- Add fallback directly in the function
- Add default key in the function
- Add docstring to cfg.ts

* forgot item translation

* remove unused locale variable

* forgot to remove fr-FR testing

* format

quartz/components/pages/404.tsx

@@ -1,10 +1,11 @@
-import { QuartzComponentConstructor } from "../types"
+import { i18n } from "../../i18n/i18next"
+import { QuartzComponentConstructor, QuartzComponentProps } from "../types"
 
-function NotFound() {
+function NotFound({ cfg }: QuartzComponentProps) {
   return (
     <article class="popover-hint">
       <h1>404</h1>
-      <p>Either this page is private or doesn't exist.</p>
+      <p>{i18n(cfg.locale, "404")}</p>
     </article>
   )
 }