chore(): Reorganize modules (#7210)

**What**
Move all modules to the modules directory

packages/modules/api-key/integration-tests/__fixtures__/index.ts

@@ -0,0 +1,14 @@
+import { CreateApiKeyDTO } from "@types"
+import { ApiKeyType } from "@medusajs/utils"
+
+export const createSecretKeyFixture: CreateApiKeyDTO = {
+  title: "Secret key",
+  type: ApiKeyType.SECRET,
+  created_by: "test",
+}
+
+export const createPublishableKeyFixture: CreateApiKeyDTO = {
+  title: "Test API Key",
+  type: ApiKeyType.PUBLISHABLE,
+  created_by: "test",
+}