webstore code tweaked because of "invalid" characters in addresses

[exxos]

It's come to my attention that some special characters are breaking the SQL stuff. I've had problems with this multiple times before.
So I have updated the store JS (which is probably broken now ? :hide:) to reject such characters.

So if anyone cannot enter their address (the boxes should turn red to indicate an error) you will have to use the English equivalent letters.

I don't know if this will also block addresses which have previously accepted such characters, but I assume that's not really possible as it would have broke before anyway :shrug: