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/resources/references/translation/interfaces/translation.CreateTranslationDTO/page.mdx

@@ -0,0 +1,11 @@
+---
+displayed_sidebar: translationReference
+---
+
+import { TypeList } from "docs-ui"
+
+# CreateTranslationDTO
+
+The translation to be created.
+
+<TypeList types={[{"name":"reference_id","type":"`string`","description":"The ID of the entity being translated.","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"reference","type":"`string`","description":"The type of entity being translated (e.g., \"product\", \"product\\_variant\").","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"locale_code","type":"`string`","description":"The BCP 47 language tag code for this translation (e.g., \"en-US\", \"fr-FR\").","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"translations","type":"`Record<string, unknown>`","description":"The translated fields as key-value pairs.","optional":false,"defaultValue":"","expandable":false,"children":[]}]} expandUrl="https://docs.medusajs.com/learn/fundamentals/data-models/manage-relationships#retrieve-records-of-relation" sectionTitle="CreateTranslationDTO"/>