chore: add fetch funtcion & add tests to helper module

apps/web/jest.config.mjs

@@ -11,8 +11,7 @@ const createJestConfig = nextJest({
 const config = {
   // Add more setup options before each test is run
   // setupFilesAfterEnv: ['<rootDir>/jest.setup.js'],
-  setupFilesAfterEnv: ["@testing-library/jest-dom/extend-expect"],
-  testEnvironment: "jest-environment-jsdom",
+  ...(await import("config/jest.config.js")).default,
 }
 
 // createJestConfig is exported this way to ensure that next/jest can load the Next.js config which is async