The "Request expert feedback" text area on the Share Plan page displayed ...

Ruby strings  %{user_name} and %{plan_name} that were not interpolated.

- The strings are now interpolated.
- The function helper function feedback_constant_to_text in FeedbacksHelper
 displays the user name instead of the email.
- also Rubocop errors and warnings in FeedbacksHelper were fixed.

Fix for issue #2047.

Update feeback requests to provide more info ...

Issue #1587