React angularlegacy legacy

Angular is no more! There is plenty more to do, some quite obvious, but some interactions may be rather surprising. Let me give some examples

Obvious:

• Refactoring directory structure
• Getting rid of angular leftovers

Not so obvious:

• Action X breaks in certain circumstances in react because an infinite render cycle is caused which was not the case in Angular+React
• Any kind of obvious bug, quirk, improvement or performance complaint

I want to focus this draft MR on the not so obvious stuff. To anyone reviewing the code, it should be clear that the obvious stuff is due in given time. If you are not sure if behaviour is intended or not, still comment on it.