docs: add documentation for migration generate cli tool (#8128)

* docs: add documentation for migration generate cli tool

* changed migrations details in marketplace recipe

* added generated oas files to action

* vale + lint fixes

* don't import from src in medusa-config.js

* fix generate command in recipe

* fix module name

www/apps/book/app/advanced-development/data-models/manage-relationships/page.mdx

@@ -27,14 +27,14 @@ export const belongsHighlights = [
 // when creating an email
 const email = await helloModuleService.createEmail({
   // other properties...
-  user_id: "123"
+  user_id: "123",
 })
 
 // when updating an email
 const email = await helloModuleService.updateEmail({
   id: "321",
   // other properties...
-  user_id: "123"
+  user_id: "123",
 })
 ```
 
@@ -57,14 +57,14 @@ export const manyHighlights = [
 // when creating a product
 const product = await helloModuleService.createProduct({
   // other properties...
-  order_ids: ["123", "321"]
+  order_ids: ["123", "321"],
 })
 
 // when updating an order
 const order = await helloModuleService.updateOrder({
   id: "321",
   // other properties...
-  product_ids: ["123", "321"]
+  product_ids: ["123", "321"],
 })
 ```