Don't hide challenge description when CTF is over

[noraj]

After the CTF end, instead of hiding and disabling the access to each challenge page https://mitrestemctf.org/game/challenges/{id}, just disable the flag submission and send an error the competition is over if someone try to submit.

This way people will still be able to access challenge name and description for write-ups.

[Bialogs]

Would you expect servers or static files to still be available?

[noraj]

I mean the server web page with description, name etc. not necessarily static files attached like dumps, pcap or whatever.