Add authentication to all endpoints

[franzwollang]

Make sure to check the role (even if all authenticated user can access it) so that it's easier to add other roles later

[aronvaupel]

I will create auth for reactions + users

[JonathanWagne]

I will do the auth for messages

[inpatr]

i will do post + delete booking
EDIT: will do all booking requests

[smnbnr]

I will do auth for task

[T0ny86]

I will do auth for something left :P , I don't know 🗡️ 🥲