Make vortoj a Client Side Mod

[HybridDog]

This would allow using it also on servers, if overriding items is possible, it's a lot easier than making intllib work client-side.

[CasimirKaPazi]

I need to test how the new client side translations work. As far as I understand it, vortoj in this case would be both a server and client side mod. On the server to replace the current item names with a translatable string, and on the client side to make use of this translatable string.