The cheatsheet legend should be moved to more prominent position

[AndrewDant]

The legend is currently located at the bottom left of the screen, where it is easily missed or cut off.

I believe it should be moved to the top left so that it is easily visible.

[AndrewDant]

My preliminary change pushed some things off the screen but I do think it shows how a legend at the top would catch the eye of users more quickly.