This is an opinionated commit. I often have all caps in my keys, so splitCase() was translating my keys from "KEY" to "K E Y", meaning I couldn't search in the browser. Also, setting width instead of min-width caused key names to be clipped.

Remove splitCase() from HTML output, and add minimal letter-spacing.
Reason being that it inserts spaces into strings. Imagine your output
has a key "NAME", yet when you search "NAME" in your browser there are
no matches. Instead you'd have to search for "N A M E"
Change field widths from 200px to min-width 200px in order to avoid
clipping.