Add sorting by character#130

Sort by character, which is an option when viewing your inventory, still isn’t an option in the store, it should be there.

Speaking off, I haven’t been able to use the sorting tool in my inventory for a while. I don’t know when it broke, but can’t seem to access the left side with both controller or mouse.

@Jojo Viviator Are you still running this bug? We aren’t able to reproduce it in the current update