[feat] Instructor register/onboarding

[haskamp]

User Story:
As a Instructor-User, I want to set and save my infos and skills, to be seen by other users.

AC:

• Form element exists with needed information for card
• Submitted Information is stored (on Server) as JSON on project
• At first registration, instructors run through various information-form pages (slider side) / Object works in structured way
• User gets a confirmation of upload
• Card gets displayed in collection

Complexity Index: M