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/packages/docs-ui/src/constants.tsx

@@ -166,6 +166,11 @@ export const navDropdownItems: NavigationItem[] = [
             title: "Tax",
             link: "/resources/commerce-modules/tax",
           },
+          {
+            type: "link",
+            title: "Translation",
+            link: "/resources/commerce-modules/translation",
+          },
           {
             type: "link",
             title: "User",