Cursor over BallValuesPanel NumberDisplays

[brandonLi8]

In the design doc, it states to use the l-bar cursor when hovering over NumberDisplays in the BallValuesPanel:

In my opinion, this cursor should be reserved for text-editor-like text boxes, because it implies that you can change the caret position and type in the middle of a string based on where the user clicks. Instead, I would prefer the current cursor "pointer":

which is the one used in unit rates and projectile motion NumberDisplays that also use a Keypad.

[arouinfar]

You make a really good point @brandonLi8. Let's use the pointer.

[brandonLi8]

Thanks @arouinfar. Done in master. Closing.