chore(): Modules providers reorganization (#7234)

Co-authored-by: Riqwan Thamir <rmthamir@gmail.com>

packages/modules/providers/file-s3/src/index.ts

@@ -0,0 +1,10 @@
+import { ModuleProviderExports } from "@medusajs/types"
+import { S3FileService } from "./services/s3-file"
+
+const services = [S3FileService]
+
+const providerExport: ModuleProviderExports = {
+  services,
+}
+
+export default providerExport