Twf.landing page authentication

[twarbelow]

Pull request type

Please check the type of change your PR introduces:

• [ ] Bugfix
• [x] Feature
• [ ] Code style update (formatting, renaming)
• [x] Refactoring (no functional changes, no api changes)
• [ ] Build related changes
• [ ] Documentation content changes
• [ ] Other (please describe):

  What is the current behavior?

  authentication is not connected to backend

  What is the new behavior?

• authentication connects to backend

  Does this introduce a breaking change?

• [ ] Yes
• [x] No

  Other information

  This code works, but I don't know if it is 'good' frontend code. I would love to work with @redferret to refactor for better FE best practices.