### Steps to reproduce

1. Configure OP to be located under prefix.
2. Configure a storage for a project.
3. Begin of the insertionInspect the URL of the main-menu item thatEnd of the insertion Begin of the deletion See project storage menuEnd of the deletion links Begin of the insertioninto the file storage. It doesEnd of the insertion not Begin of the insertionhave theEnd of the insertion Begin of the deletion having configuredEnd of the deletion prefix.

### What is the expected behavior?

Project storage menu links have prefixes.