Add a redirect for profile canonical links to user information page

Problem/Motivation

In https://www.drupal.org/project/social/issues/3044337 → , we added a user experience in which we added a redirect from canonical user entity urls (/user/uid) to user stream page.

Even though we will hardly see the profile canonical urls being presented to end user on the platform, but we have certain edge cases where these URL may appear. For example, the profile entities are indexed with the profile canonical urls in social_user and social_all indexes. They may appear in searches if someone decides to add some custom search pages. Also, a user can simply visit /profile/profile-id which may appear broken as it is not intended user information page.

Steps to reproduce

1. Go to /profile/profile-id

Proposed resolution

Since, we do not want to alter the canonical profile urls as it may break some default behaviors of profile entity, so we are adding a redirect to user stream page or to the page which set by site manager or admin as default user profile landing page at /admin/config/opensocial/user.

Remaining tasks

N.A