Change User URLs from ID to Slug

[jcorona48]

Description:
Update the /users/[id] route to use a slug instead of an ID for cleaner, more descriptive URLs.

Tasks:

1. Modify the database schema or logic to include a slug field for each user.
2. Generate slugs dynamically when new users are created (e.g., based on the user’s name).
3. Update the routing logic to replace [id] with [slug].
4. Ensure existing functionality (viewing user details, linking) works with slugs.

Acceptance Criteria:

• User details can be accessed via /users/[slug].
• Slugs are unique and descriptive.