[REF] website_forum : use website_profile templates and adds forum specific information

Adds forum specific information into the website_profile template page.
Removes everything linked to profile that is already in website_profile module to avoid duplicates.

As there can be more than one forum, the profile page shows everything linked to every forum,
except if the forum id is given in url arguments.
The old route (forum/forum-1/user/user_id) have been kept for backward compatibility reasons.

Adds the 'Go to forum' button in the 'new rank reached' mail to encourage the users to continue
to be active on the forum as well, to gain more karma point and improve there rank.

Image rpc calls have been reviewed for profile page part to use only the standard way to get image
-> web/image/model_name/id/image_size

Task ID : 1922159
PR #30988