Improve the keybinding menu.

[IPingu]

Make it so that you can just press the key you want to bind like any other modern game, its very finicky to type the key you want it to be considering mouse's today can have extra buttons on them and I cant exactly easily type those keys. Also make the action key like C be bindable because for some reason it ain't there. The menu is just very old and should really be updated, heard that people even say that the key binding doesn't save so its very buggy in its current state.