Screen scrolling doesn't work.

Hello! I'm a big fan of your work, and noticed you added terminal scrolling.

I'm building my own OS using your Terminal project as a base.

However, compiling my own code and your code both still don't scroll.

I see you have added a method called `terminal_scroll()`, however, I do not see any calls of it in terminal's code.

I hope to see this fixed, love your work!