* remove name from invite user flow
* remove name from invitation instructions
* update invitations spec
* update specs and invitation actions overflow menu name
* allow users to set name when accepting invite
* Alters the Invitations::Controller to work with registered users and onboarding
- Adds #after_accept_path_for to Application::Controller for onboarding
- Adds update! on the users registered status to the Invitations::Controller
- Adds a respond_with in place of a redirt to Invitations::Controller
- Adds a request spec testing invitation acceptance and registered status
* specs: Cleans up invitations_spec.rb comments a little bit
* fix: Adds comments back to the Invitations::Controller that previously existed prior to refactor
* Adds back accidentally removed code from InvitationsController
* Temporarily comments out invitations_spec with reference to issue in the code
* Removes invitations_spec file in favor of spec file in another open PR
