Enabling terminal dimension feature

[Lgoldfinch]

No description provided.

[noelwelsh]

I think this would benefit from a few tweaks. Also, if you run the build command from sbt that will add copyright headers, do formatting, etc. This is necessary for CI to pass the code.

[noelwelsh]

I think we want this method to return the dimensions, so something like

def getDimensions(): (Int, Int)

or

def getSize(): Size

where Size is something like

final case class Size(x: int, y: Int)

(or perhaps rows and columns instead of x and y; see what the convention is in the commands that move the cursor around.)

I've used the convention that side effecting methods have empty parameter lists. I.e. def getSize(), not def getSize

[noelwelsh]

If this is wrapped in an object named dimensions, we don't need to name the method getDimensions. Just get is fine.

Alternatively it could just be getDimensions without the wrapping object. This is not a method that is going to have a name collision, unlike the methods for setting color and moving the cursor.

[noelwelsh]

I have no idea what most of these methods do. The JLine documentation is, unfortunately, not very good.