pre-defined style fontFamily breaks Prism theme

[gutenye]

Line 51 fontFamily: "inherit"

react-live/src/components/Editor/index.js

Lines 48 to 51 in e21fd33

	margin: 0,
	outline: "none",
	padding: 10,
	fontFamily: "inherit",

Will override Prism theme

https://github.com/PrismJS/prism/blob/0d4b6cb64e72a172fc64423c04aed4ac8b59cd0b/themes/prism.css#L12

Further, why not let users define all the style (margin, outline, padding, fontFamily) by themself through className? This way, React Live will become a true HeadlessUI component.