Byline User Links are relative, not absolute to the www domain.

[official-sounding]

Describe the bug
The byline link is /member/{userId}, relative to the subsite you are on. But the user page expects the www subdomain

To Reproduce
Steps to reproduce the behavior:

1. Go to https://ask.metastaging.net
2. Click on the first posts's byline
3. See 404 page

Expected behavior
clicking the link should go to https://www.metastaging.net/member/{userId}
(well, actually, I would expect it to go to https://www.metastaging.net/user/{userId} to align URL structure with the old site)

Desktop (please complete the following information):

• OS: Windows
• Browser Chrome 136, Firefox 138

Additional context
Add any other context about the problem here.