[Bug / Issue]: Broken Link on ESU Arc Dashboard Page

### Issue Type

- [ ] Issue with a Drop I contributed
- [ ] Issue with a Drop I am using
- [x] Issue with the Jumpstart Drops website experience (e.g. broken links, typos)
- [ ] I am not sure

### What happened?

Hello, there is a broken link on this [documentation page.
](https://github.com/Azure/arc_jumpstart_drops/blob/main/ui_dashboard_workbook/arc_pbi_dashboard/_index.md)

This for user's to set up the PBI dashboard to view Azure Arc ESU pricing and server inventory.

This link displayed below is broken (highlighted in yellow):
Can we please update with new functional link?

### We need a URL

https://github.com/Azure/arc_jumpstart_drops/blob/main/ui_dashboard_workbook/arc_pbi_dashboard/_index.md

### Relevant log output.

```shell
Link is functional
```

### Code of Conduct and Licensing

- [x] I agree to follow this project's Code of Conduct and Licensing terms.

Open ui_dashboard_workbook/arc_pbi_dashboard/_index.md and inspect the ESU dashboard setup link identified in the report and screenshot. Confirm the replacement URL, update the documentation, and verify that the link resolves.

Written by the indexing model from the issue text.