Add warning box about using un-secure connection
When you visit Foris and you are on login page, there is warning box that my connection to Foris is not encrypted.
This is also documented in user-docs: https://docs.turris.cz/basics/foris/https/https/
However, there is no warning box in reForis. There should be something similar as we want to propose to users to use HTTPS if possible.
FYI: @kkoci