This introduces the "auto" stylesheet, which automatically applies some

Ink styles to the main document. Normally, Ink doesn't affect any page

styles, limiting itself to its own components. The auto stylesheet is an

opt-in way of using those styles throughout more of the page.
There isn't a lot here yet, just standard colors and fonts. More styles

will be introduced in the future.
The auto stylesheet is provided as @beanbag/ink/lib/ink-auto.css.

Made use of this in some test code. Verified the correct styling.