feat: refactor module joiner config and links generation (#7859)

* feat: refactor module joiner config and links generation

* improve typings

* WIP

* WIP

* WIP

* rename type file

* create link config

* finish typings and add utils

* improve links

* WIP typings

* finalize ExportModule utils

* finalize ExportModule utils

* fix: dml tests

* improve and fixes

* simplify typings with id changes

* add toJSON

* multiple fixes and entity builder fixes

* fix currency searchable

* fix tests

* medusa service refactoring

* cleanup

* cleanup and fixes

* make module name optional

* renaming

---------

Co-authored-by: Harminder Virk <virk.officials@gmail.com>

packages/modules/order/src/joiner-config.ts

@@ -1,12 +1,4 @@
-import {
-  buildEntitiesNameToLinkableKeysMap,
-  defineJoinerConfig,
-  MapToConfig,
-  Modules,
-} from "@medusajs/utils"
+import { defineJoinerConfig, Modules } from "@medusajs/utils"
 
 // TODO: review configuration
 export const joinerConfig = defineJoinerConfig(Modules.ORDER)
-
-export const entityNameToLinkableKeysMap: MapToConfig =
-  buildEntitiesNameToLinkableKeysMap(joinerConfig.linkableKeys)