Refactored the axios functional tests by removing unnecessary asynchronous imports and simplifying the setup in the `beforeEach` hook. This change enhances the readability and maintainability of the test code, ensuring it aligns with the project's coding standards.
Added functionality to synchronize access token refresh across multiple tabs using the `navigator.locks` API. This prevents race conditions when refreshing tokens, ensuring that a newer token published by another tab is reused instead of rotating the refresh token unnecessarily. Introduced a new method `refreshAccessTokenAcrossTabs` and updated the `getOrRefreshAccessToken` function to utilize this new method. Enhanced error handling for 401 responses to retry with the latest stored token when applicable.
