- the profile_link helper was delivering a path, but not a link
- renamed profile_link to profile_url_path (not profile_path to not conflict with path helpers)
- created new method profile_link, that creates a real html link of the user with its full name
  - it also checks for current_user policy credentials, edit? or show? and if none of them, it shows
    the users full_name and email as pure text

It returns volunteers that
- has a user signed in at least once and
- it's not softdeleted.

rake task that creates users, sends password reset email, and initializes bulk contact profile for them

- also add relation definitions within User
- also add relation definitions within ReminderMaiulingVolunteer

- deduplicating features between existing trial feedbacks list.
- merging common things into concerns