docs: translation module (#14271)

* docs: translation module

* fix link in JS SDK

* add translations user guides [WIP]

* updates

* fix broken link

* remove mentions of default locale

* change header

* updates

* updated user guides

* handle todos

* fix build error

* fix lint errors

www/apps/book/app/learn/fundamentals/admin/translations/page.mdx

@@ -20,7 +20,7 @@ The Medusa Admin dashboard supports [multiple languages](!user-guide!/tips/langu
 
 <Note>
 
-Medusa Admin translations apply to the interface only. Medusa doesn't support translating store content, such as product names or descriptions. To implement localization for store content, [integrate a CMS](!resources!/integrations#cms).
+Medusa Admin translations apply to the interface only. To translate content like product data, check out the [Translations user guide](!user-guide!/settings/translations).
 
 </Note>