test: rename test file and solve a failed test case in it

Rename `productsCategorieslist_get.test` test file to `settings_storeVariables_get.test`
because its response changed, And edit the only test case in the file to match the new
response from the endpoint.

__tests__/integration_testing/settings_routes_tests/productsCategorieslist_get.test.js → __tests__/integration_testing/settings_routes_tests/settings_storeVariables_get.test.js

@@ -1,5 +1,11 @@
+import SettingsModel from "../../../src/models/Settings.js"
+import { fakeSettingsObject } from "../../fakes/fakeSettingsObject.js"
 import { userRequest, closeTestingServer } from "../../helpers/testRequest.js"
 
+beforeAll(async () => {
+    await SettingsModel.create(fakeSettingsObject)
+})
+
 afterAll(async () => {
     await closeTestingServer()
 })
@@ -11,9 +17,7 @@ describe("GET /api/settings/variables", () => {
     it("Should returns an array of products categories", async () => {
         const response = await userRequest(routePath, "get")
         expect(response.statusCode).toBe(200)
-        expect(response.body.categoriesList).toEqual(
-            expect.arrayContaining([expect.any(String)])
-        )
+        expect(fakeSettingsObject).toMatchObject(response.body)
     })
 
 })