Unity Hub "The agent you already work with now understands your Unity project." banner's "Learn More" button links to a "Not found / 404" web page

Steps to reproduce:

1. Open the Unity Hub
2. Click the "Learn More" button in the "The agent you already work with now understands your Unity project." banner
3. Observe the opened web page

Actual results: Opens a "Not found / 404" page

Expected results: Opens a functioning web page

Reproducible with versions: 3.21.1

Tested on (OS): MacOS Silicon Tahoe 26.6.2