fix: broken user links

[andypols]

Summary

This PR addresses #1264, fixing broken user profile links and improving maintainability by centralising user navigation into a reusable component.

Problem:

User profile links across the application were pointing to /dashboard/user/:id, while the actual route was configured as /dashboard/admin/user/:id. This mismatch caused broken navigation in the Reviewers, Contributors, and Push Details sections.

Additionally, using the /dashboard/admin/user/:id route prevented non-admin users from accessing these links due to uiRouteAuth restrictions.

Solution

• Fixed route mismatch: Updated the user detail route from /dashboard/admin/user/:id to /dashboard/user/:id to align with existing usage.
• Introduced UserLink component: Added a reusable React component that uses React Router’s Link for client-side navigation, eliminating full page reloads and improving user experience.
• Centralised user links: Replaced hardcoded user anchor tags in RepoDetails and PushDetails with the new UserLink component, ensuring future route changes require updates in only one place.

The UserLink component supports both simple usage (<UserLink username={user} />) and custom children for wrapping images or displaying alternate text.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.36%. Comparing base (6dc22e9) to head (c445266).
⚠️ Report is 6 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1268   +/-   ##
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  Coverage   83.36%   83.36%           
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  Files          70       70           
  Lines        3005     3005           
  Branches      499      499           
=======================================
  Hits         2505     2505           
  Misses        397      397           
  Partials      103      103           

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[jescalada]

@andypols I fixed up some remaining user links, should be good to merge after a final check on your side!

[jescalada]

LGTM after my fixes are reviewed!

I replaced the a tags in the AttestationView component to use UserLinks instead, and also adjusted a link on UserList which used the old format.

I'll be adding dynamic URLs for uiRouteAuth-defined admin routes down the line.

[andypols]

@jescalada Nice one. LGTM