The navigation pane now matches the document structure from database, but breadcrumbs bar became broken, not yet fixed.
Added check to folder creation so that subfolders cannot be created in parent folders that don't exist.
Test route and test file uploading functionality added and confirmed to run properly. Utilized direct-to-storage upload method to bypass sending file data to backend
Backend works when trying to use Postman to request the API endpoint. File upload in the frontend also works since the data is parsed properly as multi-part form data. The issue is the frontend seems to cannot directly send request to backend and is outright rejected.
The current API endpoint data doesn't match the document structure in the frontend logic. So I introduced a mapping function but it has not been called into the code yet as this needs a major refactoring to do.
