add visible borders to number/string inputs (related to issue #29)

[cvan]

before

## after

[cvan]

this is just a tweak. to completely close #29, all numeric fields should be properly changed from input.number to <input type="number">/<input type="range">

[fernandojsg]

Do you think we should center or align right the numbers with the new style?

[caseyyee]

I think having a box around the numbers helps make it easy to see that it's a editable field. Also helps with the readability of the numbers as well. In this case, it's aligned-left:

(Sketch)

We can use underlines in place of boxes. As long as we are consistent.

Also like that they have X, Y clearly labeled for the fields.

[cvan]

👍 to Sketch's treatment

[ngokevin]

ecb2045