Accept invite for a course

[lucasg-c]

As a student
I want to accept a course invite
So I can enroll in a course

Acceptance criteria

• After a student clicks on an invitation link, the page should be redirected to the course associated with the link;
• A log should be created after a student uses the invitation link, informing which course the invite was made for and which student enrolled in;
• The course page, after a student clicks on a invitation link, should have an enrollment confirmation message;
• The invitation link, after expired, should redirect to a page warning that this invite has expired;
• All invitation links of a course, after said course has ended, should be deactivated;
• The invitation link should be used only by authenticated users;
• The invitation link, if used by an unauthenticated user, should redirect to the registration page with a warning that you can’t enroll without being registered on the platform.