Create frontend tests for subpages with higher complexity

[Sebobo]

To simplify testing of neos.io after changes we should implement behaviour tests that check the functionality on certain pages.

I recommend to test the following list, which can and should be extended:

• [ ] Homepage - Logos, Neos headline
• [ ] Funding page - Badges are displayer and show company logos and some values
• [ ] Teams page - Teams are shown and team members can be inspected
• [ ] Show cases - Search and display of show case items
• [ ] Events - Listing and browse into years and single view
• [ ] neoscon.io - Homepage headline
• [ ] flow.neos.io - Homepage headline