As a user, I want to see a helpful error message instead of the rails stack trace when I try to add content while I am not logged in, so that I can react to it.
[x] Show an error when trying to add content while not logged in
[x] Allow navigating back to the map
[x] Allow navigating to the login
For rooms/new:
[x] Show an error when trying to add content while not logged in
As a user, I want to see a helpful error message instead of the rails stack trace when I try to add content while I am not logged in, so that I can react to it.
For rooms/new: