Narrower button-bar on the pattern screen (0xtob/#52)

[asiekierka]

Make the buttons a bit narrower to fit another pattern column on the screen.

[deadpahn]

I'm skeptical of this. The DS screens aren't good. I already have troubles pressing buttons as it is hahaha. I guess those buttons aren't really live critical but I think it's still important to keep in mind how borked the DS screen can be. However, I don't dare go over 4 tracks. SOMETIMES, but not usually, so this is just my bias.