Improving Grid Line Animations

Background

As we are finishing up the Grid lines initial PR, we are already thinking about how to improve it! This is somewhat lower priority currently but will be worked on consistently.

Additional Information

Here were some thoughts @Wikunia and I were thinking about implementing next:

• Have a lighter grid (setline(0.5) or something) and bigger lines every 5 or so steps.
• Have numbers and titles for the axis
• The thing about extensibility using Val for example (see #18)

I also thought of a couple that I was exploring:

• Arrows at the end of lines
• Defining x and y axis limits for zero-lines

If anyone else has any thoughts, feel free to drop a comment/thought! For reference, here is what the current grid lines animation look like: