Fix storybook tests (#5487)

Fixes #5486

---------

Co-authored-by: gitstart-twenty <gitstart-twenty@users.noreply.github.com>
Co-authored-by: v1b3m <vibenjamin6@gmail.com>
Co-authored-by: Charles Bochet <charles@twenty.com>

packages/twenty-front/src/modules/navigation/utils/indexAppPath.ts

@@ -0,0 +1,12 @@
+import { AppPath } from '@/types/AppPath';
+
+const getIndexAppPath = () => {
+  return AppPath.Index;
+};
+
+// This file is using the default export pattern to be compatible
+// with the way it is imported in the tests.
+// Otherwise we cannot mock it: https://github.com/jestjs/jest/issues/12145 as we are using ES native modules
+// TBH: I am not a big fan of this pattern, alternatively we could set a global variable or a recoilState
+// to store the value
+export default { getIndexAppPath };