Don't restrict TLD length in email regex

[boomlinde]

Solves #53

I've done no testing at all

[caracolplusplus]

Hello Philip,

Thank you for taking interest in Avalon.ist. I forgot to put this on the README a long time ago but this project is currently unsupported.

I am aware the site is back online, but if you want it to run decently in the long run i suggest you rehaul the backend. I did this project with almost no backend experience and as i investigated more i realized this technology wasn't good enough for a game like this. A game with realtime chat could work incredibly better with something like socket.io or uWebsockets or anything oriented towards realtime.

I'll approve this commit but i suggest you clone the repo and work it as your own.
I am willing to help answering questions.

Have a nice week, Oken.